Five minutes by shuttle from Hakone-Yumoto Station, a day-use-only bathhouse in the hills along the Sukumo River. Terraced rock rotenburo, a cave bath and a lukewarm pool invite long soaks. No reservation needed; rest rooms, restaurants and a reading lounge make it easy to stay half a day. Tattoos not permitted.
A nine-room designer ryokan in the heart of Shuzenji. Indoor bath of Fuji lava stone and cypress, plus an Izu-stone garden rotenburo fed by three private springs. Day bathing is a 2.5-hour midday window, reservation only, with green tea and a sweet afterwards.
A municipal public bath two minutes from Bandai-Atami Station. Two pools of free-flowing spring water — a lukewarm one at about 36°C and a hot one — with silky alkaline water made for long soaks. Unusually, admission is highest in the morning and drops to ¥400 from 14:00 and ¥300 from 16:00. No towels or soap; bring your own.
A town-run day bath in the middle of the Minakami hot-spring street. Just one small indoor pool per gender, but 100% spring-fed sulfate water — an easy stop while strolling the town. Rest room, small shop and coin laundry give it the feel of a tourist office with a bath. 15 minutes on foot from Minakami Station. No soap provided.
Eight minutes from Shimura-sakaue Station in Itabashi, one of Tokyo's most atmospheric super-sento, built around a Showa-era mansion and dry-landscape garden. Free-flowing olive-green spring water in the rotenburo, high-concentration carbonated bath, stone sauna and a soba restaurant. ¥970 weekdays, ¥1,300 weekends and holidays; open until midnight. No tattoos.
Four minutes from Hankyu Arashiyama Station and a short walk from Togetsukyo Bridge, Arashiyama's only dedicated day-use onsen. Mildly alkaline simple spring water in indoor, open-air, silky and sauna baths. Easy to slot between sights, with towel rental so you can come empty-handed. The changing room is small, so avoid peak hours. ¥1,200 weekdays, ¥1,400 weekends and holidays.
A locals' public bath three minutes from the east exit of Echigo-Yuzawa Station, tucked into the shopping street. Indoor pool only, but the slightly hot, soft water that clings to the skin gets praise. Shampoo is provided and a towel set costs ¥400, so you can drop in empty-handed while waiting for the shinkansen. ¥600 since December 2025.
The town bathhouse in front of Unazuki Onsen Station, gateway to the Kurobe Gorge Railway. A bright white bathroom with tubs of Kurobe granite holds crystal-clear, mildly alkaline water said to be Japan's most transparent. Just ¥510, with a free foot bath, drinking fountain and rooftop terrace. Easy to fit in before or after the gorge train.
Thirty minutes by train from Fukuoka, next to Dazaifu, this communal bath belongs to Futsukaichi Onsen, a spring with 1,300 years of history. A single tub in a wooden building, but 100% free-flowing alkaline water leaves skin slick and smooth, and locals keep coming. ¥350 weekdays, ¥450 weekends. Upstairs rest room, plus onsen coffee and hot-spring eggs. Increasingly paired with a visit to Dazaifu Tenmangu.
A day spa perched on a bluff with the whole Pacific in front of it — both the rotenburo and the sauna face the sea, giving sunrises in the morning and fishing-boat lights at night. Carbonated bath, stone sauna and restaurant; open 9 am to 1 am. ¥950 on weekdays. About 10 minutes by car from Hitachi-Taga Station on the JR Joban Line, doable as a day trip from Tokyo.
A city-run day bath in front of Awara-Yunomachi Station, two stops from the Hokuriku shinkansen at Awaraonsen. 'Heaven' and 'Earth' bathrooms alternate weekly between men and women, each with rotenburo and sauna. Chloride water keeps you warm long after. ¥600 and open until 23:00 — a rare walk-in option in a town dominated by ryokan. Try the hot-spring eggs. No tattoos.
At the southern tip of Nara, directly opposite the Totsukawa Onsen bus center where Japan's longest local bus route (Yagi–Shingu) stops. A small all-timber bathhouse looking down on the Futatsuno dam lake. The whole village has pledged 'free-flowing spring water only', so nothing is recirculated. Free foot bath, hand bath and drinking fountain. Combine with the Kumano Kodo and Tanize suspension bridge.
The source bath of Yamaguchi's oldest hot spring, opened some 600 years ago. Local volunteers rebuilt the aging public bath in 2020; the bathroom sits directly on the spring, so you stand chest-deep in a 1-m pool watching water seep from the bedrock. Around 39°C — made for long soaks. The riverside lounge doubles as a café open to non-bathers. Pair with a stroll through the town redeveloped around Hoshino Resorts' KAI Nagato.
Nagoya's largest bath complex, about 10,000 m² along the Nakagawa Canal. A tropical-resort layout with natural hot-spring rotenburo, a main sauna with auto-löyly every ten minutes, a 2-m-deep cold plunge and a big outdoor cool-down deck — sauna fans rate it highly. The separately ticketed 'TERA SPA' stone-sauna zone adds barrel saunas. ¥900 weekdays; open until 3 am on Fridays and Saturdays. 25 minutes by bus from Nagoya Station.
The only communal bath in the Minami-Chita hot-spring area, near Toyohama fishing port at the tip of the Chita Peninsula. Salty chloride water from the most abundant springs in Aichi for just ¥700. While the ryokan charge ¥1,000–1,650 for limited midday hours, this one is open straight through 10:00–21:00. Handy after the Toyohama fish market or a day's fishing. 25 minutes by bus from Meitetsu Kowa Station.
Forty minutes by car from Niigata city, the communal bath of Tsukioka Onsen, which bills itself as the spring that 'makes you beautiful'. The emerald-green water has one of the highest sulfur contents in Japan — you smell it the moment you step in. Indoor pool only, ¥600. On the edge of the ryokan street and popular with locals. 25 minutes by bus from Shibata Station. Closed Tuesdays and the third Wednesday.
A hot-spring bathhouse in Yuda Onsen near central Yamaguchi city. In the middle of a town whose legend tells of a white fox healing its wounds here, close to the Nakahara Chuya museum, it offers alkaline simple-spring water for a remarkable ¥390. Open until 23:00, so many finish their tour of the town's free foot baths here. No soap provided. 20 minutes by JR from Shin-Yamaguchi, then 10 minutes on foot from Yuda-Onsen Station.
Kamata, 15 minutes by train from Haneda Airport, has Tokyo's densest cluster of 'kuroyu' black-water springs. Kaiseiyu, founded in 1929, is the classic: a coffee-dark natural bicarbonate bath, a high-concentration carbonated pool and a cold plunge, with a goldfish aquarium set into the bath wall. ¥600; a toiletries-and-towel set is sold at the desk. Ideal before a flight or after a late arrival. Tattoos are fine, as in most sento.
Two subway stops from Umeda and 8 minutes from Tenjimbashisuji-rokuchome Station, a natural onsen on the 8th-floor rooftop of a building. Mildly alkaline water from 659 m below fills open-air baths looking over the Osaka skyline. Generous sauna and outdoor cool-down area, ¥900 on weekdays, open until 1 am. Combine with a stroll down Japan's longest shopping arcade, Tenjimbashisuji, and Osaka Tenmangu shrine.
Eight minutes from Tsuruhashi Station, home of Osaka's Koreatown, a large bath complex known for its Japanese garden landscaping. Pot baths, a standing-depth bath, rock rotenburo and carbonated pool, plus a separately ticketed Korean-style 'hanjeungmak' stone-sauna zone. Open until 2 am — perfect after the yakiniku streets. Everything is charged to a wristband and settled on exit. ¥1,000 weekdays.
Four minutes from Arisugawa Station on the Randen tram near Arashiyama, a day spa in Kyoto-style timber architecture. Chloride water from 1,200 m below fills rock rotenburo, pot baths and a spacious indoor pool; the men's side has a 'theater' sauna, the women's two saunas. Open until midnight, so it works after a day in Arashiyama. Restaurant on site. ¥1,200 weekdays; closed the third Monday.
A natural onsen inside Bayside Place Hakata at the port, 15 minutes by bus from Hakata Station. Chloride 'heat water' gushes at 400 litres a minute from 800 m down, filling a free-flowing lukewarm pool and a hot outdoor bath. Sauna, seven stone-sauna rooms and private baths (¥3,900 for 90 min, up to four people). It shares the site with the ferry terminal for Shikanoshima and Nokonoshima. ¥1,100 weekdays, open until midnight.
Hiroshima's largest natural-onsen complex, in Ujina near the port. Brown bicarbonate water in a rock rotenburo and free-flowing tubs, plus carbonated bath, sauna and stone sauna. Two-tier pricing: ¥500 for indoor baths only, ¥1,000 (weekdays) for everything. 25 minutes by tram from the Peace Memorial Park and close to the Hiroshima Port ferries for Miyajima.
Twenty minutes by train from Aomori, a panoramic bath on the 5th floor of the roadside station at Asamushi Onsen on Mutsu Bay. Big windows frame Yunoshima island and the bay — sunset is the prime slot. Salt- and sulfate-rich water keeps you warm afterwards. Just ¥360, open 7:00–21:00 every day. The ground-floor market sells Aomori souvenirs. Two minutes' walk from Asamushi-Onsen Station.
The communal bath of Yunotsu, once the shipping port for the World Heritage Iwami Ginzan silver mine. Rated a perfect 'all fives' by the Japan Spa Association, it is 100% free-flowing, and iron-rich mineral deposits coat the tub in thick brown crusts. Next door is 'Shin-yu', a Western-style wooden building from 1919 whose retro café and rooftop terrace are open to bathers. ¥600. The whole street is a preserved historic district.
On a mountainside above the Kofu basin, a spectacular open-air bath with Mt. Fuji and the city lights in view. It opens 'one hour before sunrise', so people arrive in the dark to watch dawn break over Fuji from the water. Of the two bathhouses, 'Acchi-no-yu' is the larger with the better view. ¥900. The deep-fried hot-spring egg from the food stall is a must. Ten minutes by taxi from Yamanashi-shi Station; a feasible day trip from Tokyo.
Twenty-five minutes by local train from Fukushima, the emblematic communal bath of Iizaka Onsen, where the poet Basho is said to have bathed. Rebuilt in 1993 as a faithful copy of one of Japan's oldest wooden bathhouses, its granite tub runs with free-flowing spring water above 45°C. Locals don't cool it with tap water; visitors get guidance. ¥400, from 6 am. No soap or shampoo. Start here for a crawl of the town's nine public baths.
A wooden ryokan founded in 1841 on the Toyosawa River at the far end of the Hanamaki onsen villages. Its signature is 'Hakuen-no-yu', a self-welling rock pool about 1.25 m deep that you stand in — billed as Japan's deepest rock bath. Five springs feed four bathhouses, all 100% free-flowing. Day use ¥800, 10:00–21:00. Hakuen-no-yu is mixed bathing with women-only hours. Free shuttle from Hanamaki Station by reservation.
A village-run public bath on the shore of Futatsuno Dam lake in Totsukawa, the village that declared all its baths 100% free-flowing. Attached to a seniors' centre, it's plain but pours 70°C bicarbonate-chloride water straight in with no recirculation. Handy on Tuesdays when nearby Iori-no-yu is closed. ¥600, 9:00–21:00, closed only Jan 1–2. Five minutes' walk from Totsukawa-Onsen bus stop.
Just behind Kokusai-dori, the only natural hot spring in central Naha, attached to Naha Central Hotel. Chloride water from 800 m underground fills indoor and open-air baths, plus dry, salt and mist saunas. Open 6:00–23:00 every day — handy before or after a flight. ¥1,250 on weekdays (bring your own towel). Five minutes' walk from both Miebashi and Makishi monorail stations.
Fifteen minutes by Kotoden train from central Takamatsu, an architect-designed modern wooden bathhouse. Every tub is free-flowing, and the lukewarm bicarbonate water leaves skin silky. Inside are a second-hand book corner and veranda-like lounges where people linger reading after their soak. ¥700; 11:00–24:00 weekdays, from 9:00 on weekends and holidays. Ten minutes' walk from Busshozan Station.
About 80 minutes from Ikebukuro by Laview limited express, a complex hot-spring facility joined to Seibu-Chichibu Station. Themed on the 300-plus festivals Chichibu holds each year, it packs 9–10 tubs per side including open-air baths, a high-concentration carbonated bath and saunas. The food court serves waraji katsu-don and Chichibu soba; the shop sells local sake and miso pickles. ¥1,100 on weekdays, 10:00–22:00; morning baths from 6:00 on weekends.
A large day-spa at Yuda Onsen in Yamaguchi city. The men's 'Byakko-no-yu' faces a Japanese garden while the women's 'Xavier-no-yu' is Western in style; both offer rotenburo, lie-down and jet baths, a walking pool and sauna. The pH 9.2 alkaline water feels silky. ¥1,000 including a face towel, open 10:00–24:00 every day. Upstairs there's a manga and rest lounge plus a canteen. Ten minutes' walk from Yuda-Onsen Station.
The only communal bath in Akiu Onsen, Sendai's classic hot-spring retreat. Among upscale ryokan charging ¥1,000-plus for day use, this humble bathhouse offers free-flowing chloride spring water for ¥300. Near the Yakushi-do temple at the source, it has a single tub and a mostly local crowd; soap is sold, not provided, and a sign asks for 40-minute stays. About 55 minutes by bus from Sendai Station, right by the Yumoto stop.
A communal bath in Obama Onsen on Tachibana Bay, whose ~100°C springs release more heat than any in Japan. The single-storey wooden building from 1937 feels like a museum of Showa-era life and is a designated prefectural townscape asset. Pay at the old-style counter, then choose between the hot and very hot tubs of free-flowing chloride water. Open from 6 am; part of the Kyushu 88 Onsen trail. About an hour from Nagasaki city, on the way back from Unzen.
A lone inn in a primeval beech forest on the southern flank of Mt. Hakkoda. Spring water wells up directly through the gaps in the hiba-cypress boards on the tub floor — 'free-welling', so you bathe in water that has never touched air, a rarity even in Japan. The all-hiba 'Kyuan-no-yu' bathhouse from 1918 is magnificent. Day use 10:00–15:00, ¥1,000; may close early when busy. Combine with the hour-long trail around Tsuta-numa pond, famous for autumn colour. Closed in winter.
Thirty minutes by car from Fukushima city, the communal bath of Takayu Onsen at 750 m on Mt. Azuma. Every bath is open-air, filled with milky-white sulfur water that is neither diluted nor heated. There's a timber men's bath, a rock women's bath and a reservable private rotenburo. A ¥500 gateway to a spa town that has kept its water free-flowing for 400 years. Closed Thursdays; one-hour limit. At the foot of the Bandai-Azuma Skyline — ideal with an autumn drive.
Twenty minutes by car from the Tottori Sand Dunes, the communal bath of Iwai Onsen, one of San'in's oldest springs at 1,300 years. It preserves 'yukamuri', a quirky custom of singing while ladling water over a towel on your head. The 47.6°C source in a corner of the car park flows in 100% untreated. ¥380, open 6:00–22:00. A humble soak to pair with the Uradome coast or the dunes.
A ryokan founded in the early Taishō era, five minutes on foot from Kyomachi-Onsen Station at the foot of the Ebino plateau. Every tub is free-flowing simple spring water, and a day soak costs just ¥300. Highlights are a cave-style private bath (¥500/hour) and an atmospheric open-air bath that alternates men/women after 18:00. A hidden gem 40 minutes by car from Kagoshima Airport on the way to the Kirishima range.
Shimane's only onsen bathhouse, offering the lakeside Matsue Shinjiko spring for ¥430. Five minutes on foot from Matsue-Shinjiko-Onsen Station on the Ichibata line, easy to drop into after Matsue Castle or the moat cruise. The sodium-calcium sulfate-chloride water holds heat well. No soap or shampoo provided, but a take-along set is sold. Ninety percent of bathers are locals—everyday Matsue at its most authentic.
The village-run public bath of Tōsenji Onsen, the oldest spring in Totsukawa. pH 9.1 alkaline sulfur water flows fresh from the source even through the taps, leaving a faint sulfur scent and slippery skin. Just a stone open-air bath facing the gorge and an indoor tub—simple and ¥600. Handy on Route 168 en route to the Tanize suspension bridge or Kumano Hongū Taisha.
A solitary inn on the Hinoji River in the Shimanto headwaters. Its viscous, highly alkaline water has been revered as a healing spring since the Edo period, and a day soak is a modest ¥700. Enjoy the open-air bath above the stream or book a private bath. Open late, 10:30–21:00, and 30 minutes by car from Kubokawa Station—ideal after canoeing or cycling the Shimanto.
A modern cure-bath inn fed by Tamagawa Onsen, Japan's most acidic spring at pH 1.2. The hiba-cypress bathhouse lines up 15 tubs — 100% source, 50% diluted, mildly acidic and more — so you can choose by condition. Day use 10:00–15:00, ¥1,000 (revised April 2026). An indoor stone-slab bath (¥800) is also available, and unlike the original Tamagawa it stays open all winter for snowbound soaking. About 70 min by bus from Tazawako Station.
The only public bath in Miyazu, right next to Amanohashidate Station on the Kyoto Tango Railway — the gateway to one of Japan's Three Views. Named after the Monju bodhisattva of wisdom, it looks like a small ryokan. Magnesium-rich chloride water fills an indoor bath and hand-and-foot bath, with a free footbath outside. ¥800, 12:00–21:00. Perfect for a rinse while waiting for your train after walking the sandbar.
The public day bath at the heart of Matsunoyama, counted with Arima and Kusatsu among Japan's 'three great medicinal springs'. The water is fossil seawater some 12 million years old, heated geothermally — salty, slightly oily and hot enough to warm you to the core. Indoor bath plus a small open-air tub, ¥600 (¥500 after 17:00). In this heavy-snow region it becomes a snow bath in winter. Used by inn guests for bath-hopping too, and close to the site of the famous 'groom-tossing' festival.
An all-glass communal bath on the shore of Lake Shibayama in Katayamazu, part of the Kaga onsen cluster, designed by architect Yoshio Taniguchi. The lake-facing 'Kata-no-yu' and garden-facing 'Mori-no-yu' swap between men and women on odd and even days; for ¥500 you get the Hakusan peaks and the lake to yourself. The salty chloride water keeps you warm long after. Open from 6:00 to 22:00, with a café upstairs (closed Thursdays) selling onsen eggs. About 10 min by bus from Kaga-Onsen Station.
The signature communal bath of Tōgatta, gateway to the Zao range on the Miyagi side. A wooden bathhouse with nothing but two indoor tubs — a 'hot' one around 44°C and a 'mild' one at 42°C — fed free-flowing by a 400-year-old source. The sodium-calcium sulfate-chloride water is reputed for cuts and skin complaints and keeps you warm long afterwards. ¥400, 9:00–20:30. The source and Tōgatta Shrine sit behind it and a free footbath in front; combine with a stroll through the kokeshi-doll village.
The highlight of any Gonō Line journey: a lone inn famous nationwide for its 'seaside open-air bath' set right at the water's edge of the Sea of Japan. Iron-rich chloride water, rust-red and cloudy, seems to merge with sea and sky. Day use is ¥600 — the seaside bath 8:00–16:00 (last entry 15:30), the main-building indoor 'Kogane-no-yu' 8:00–20:00. The mixed outdoor bath allows bathing wear (rental fee); a women-only outdoor bath sits alongside. Sunset soaks are for overnight guests only, so stay if you want one of Japan's 100 best sunsets from the tub.
The only hot spring inscribed as a World Heritage Site that you can actually bathe in, listed together with the Kumano Kodo pilgrimage routes. A tiny hut over the stream in Yunomine — said to be Japan's oldest onsen at 1,800 years — shelters a tub hollowed from natural rock that fits two adults. The sulfurous water is said to change colour seven times a day and served pilgrims for ritual purification. Private 30-minute slots, ¥800, sign up at the public bathhouse (6:00–21:00). Waits of several hours are common on holidays; boil onsen eggs in the hot-spring trough while you wait.
A day bath inside a public inn 15 minutes by ferry from Kagoshima port and 8 minutes' walk from Sakurajima port. Water rises at 51°C from a magma layer 1,000 m below, clouded rust-brown with iron, and flows freely through a bath hall looking across Kinkō Bay to the city. ¥460, 11:00–21:00 — a bargain after touring the volcano or the lava seaside trail. The free 100-metre Lava Nagisa Park footbath is within walking distance. Operations may be affected by volcanic alert levels.
A village-run day bath in the Dorogawa onsen street at 820 m, the trailhead for sacred Mt Ōmine. Reopened in April 2024 after renovation, it heats its water with a wood boiler burning local forest thinnings. Yoshino-cedar indoor bath, open-air bath and a rest room; the mildly alkaline water leaves skin silky. ¥800, 11:00–20:00, closed Wednesdays. Pair it with the lantern-lit wooden inns, the 'Gorogoro' spring water (one of Japan's 100 famous waters) and Menfudō limestone cave for one of Kansai's best retro onsen strolls. Busy as a summer retreat.
The landmark of Arifuku, a stair-stepped hamlet of wooden inns tucked into the San'in hills. A 1928 reinforced-concrete bathhouse with Western arched windows, it pours colourless alkaline simple-spring water undiluted into the tub — slippery 'beauty water'. ¥400 with soap and shampoo, open 7:00–22:00 for early soaks. A family bath rents for ¥1,200 an hour, and the tatami rest room upstairs displays pre-war photographs. Cars can't enter the sloping village, which also has the Satsuki-yu and Yayoi-yu public baths for a three-bath circuit.
A 12-room inn in Yoro Valley, the Boso Peninsula's autumn-colour spot and the last place in the Kanto region to turn, peaking late November to early December. Boso's signature coffee-coloured alkaline 'black water' fills the indoor and open-air baths; day use is a flat ¥700 for ages 3 and up, 11:00–15:00. Eat lunch in the dining room and the bath is free — spring bamboo-shoot dishes are the speciality. Five minutes by bus from Yoro-Keikoku Station on the Kominato Railway to Yorokan-mae. Lunchtime opening can be suspended at short notice, so phone ahead.
A ryokan in Kitago Onsen, the quiet inland retreat behind the castle town of Obi and the Nichinan coast. Bicarbonate water rising at 51°C from 800 m below lives up to the 'beauty bath' name — skin feels slick, and you can drink it too. The bubble-jet main bath and separate open-air baths are all free-flowing. Day use ¥600 (revised June 2026), 11:00–19:50 (last entry 19:00). The dining room's spiny-lobster set (autumn–winter) is popular; combine with Obi's old town or Udo Shrine. Five minutes by car from JR Kitago Station.
The municipal bathhouse that serves as the source bath of Kawatana Onsen, Shimonoseki's hinterland spa with some 800 years of history — the Mōri lords bathed here. Sodium-potassium chloride water (source about 41 °C) fills the indoor bath, with an open-air tub and sauna; adult admission is a modest ¥480. Family baths (from ¥1,100 for 80 min weekdays / 60 min weekends) and a rest-room package (¥800) allow a leisurely cure-style visit. Open 10:00–21:00 (last entry 20:30); closed the first Thursday of even-numbered months. Kawatana is the birthplace of kawara-soba, noodles grilled on a roof tile — try it after your bath. An easy stop on the way back from Tsunoshima Bridge.
A municipal day-use onsen entered straight from the Shimabara Ichibangai shopping arcade in this spring-water castle town. Magnesium-sodium bicarbonate water (source 61.8 °C) is used free-flowing — clear, colourless and soft on the skin. The building has a retro Shōwa-era bathhouse feel, with a sauna and tatami rest hall; admission ¥530, or ¥320 for over-70s. Open 10:00–21:00 (last entry 20:30), closed Wednesdays. Within walking distance of Shimabara Castle, the samurai quarter and the carp-stream streets, and a handy stop between Shimabara port and Unzen. Parking free for two hours.
A large day-use onsen next to the Naruto boat-race stadium, 10 minutes by car from the whirlpools and the Ōtsuka Museum of Art. The open-air bath, fed by the site's own natural spring, opens to Naruto's hills and sky; there are also a carbonated bath, pot tubs, a hot sauna, cold plunge and outdoor rest area. Open 8:00–24:00 (last entry 23:00), from early morning to late night; ¥750 weekdays, ¥900 weekends and holidays. The ground-floor restaurant is known for fresh fish — Naruto sea bream and sashimi at fair prices. Walkable from the Konaruto-bashi bus stop on the Tokushima Bus Naruto line. Irregular closures.
Ise city's only full-scale super-sentō, attached to the Mitasu Ise shopping centre five minutes by car from the Outer Shrine. Funae Onsen water pumped from below fills the open-air stone and rock baths, joined by a high-concentration carbonated bath, jet baths and a tower sauna — eleven baths in all. Open 9:00–23:00 (last entry 22:30); ¥800 weekdays, ¥900 weekends and holidays, with towel-rental packages so you can drop in empty-handed between shrine visits. The Hyōtan-tei restaurant serves local dishes like Ise udon and tekone-zushi. About 20 minutes on foot from Iseshi Station, or right at the Mitasu Ise Kita bus stop (Mie Kōtsū).
A natural-spring super-sentō on the 5th–6th floors of the building linked by footbridge to the north exit of Kabe Station on the JR Ōme Line. The alkaline simple spring from 1,500 m down is known for leaving skin silky; the top floor has an open-air bath, lying bath, hot sauna and cold plunge plus an outdoor rest deck facing the Tama hills. Open 10:00–23:30 (last entry 23:00); ¥1,000 weekdays, ¥1,150 weekends, cheaper after 21:00. The Baijuan restaurant's weekday lunch-and-bath set is good value. The most convenient day onsen in western Tokyo — stop off on the way back to Shinjuku after hiking Mt Mitake, driving Okutama or browsing Ōme's retro shopping street. Closed the third Wednesday.
A roadside-station onsen on the hill of Shōdoshima Olive Park, right beside the Greek windmill made famous by film shoots. Big windows frame olive groves and the Seto Inland Sea; there are a herb bath, waterfall shower and sauna. The water is a radioactive (radon) spring. Owing to staff shortages, hours are shortened to 15:00–20:00 (last entry 19:30) from 17 July 2026 until further notice; ¥1,000, towel set rental ¥200. Closed all day Wednesday, and the onsen only on Thursday (holidays vary). Five minutes by car from Kusakabe port, ten from Ikeda port. Pair with a stroll around the park and the adjacent Olive Beach at island dusk.
One of Tōhoku's highest hot springs, at 1,126 m on the northern slopes of Mt Kurikoma. Some 6,000 litres a minute flow like a stream; the strongly acidic alum-vitriol water (pH around 2) carries white mineral flakes and tingles on the skin. The famous big open-air Dainichi-yu is an open, rock-backed pool; day use 6:00–21:00 (until 20:00 on Wednesdays), ¥900. The indoor baths and the 'oiran' steam bath run 9:00–16:00. Because of the altitude, the road and the onsen close in winter (early November to early May). About 95 minutes by bus from Ichinoseki Station to the Sukawa Onsen terminus; it is also the Kurikoma trailhead, busiest in autumn colour season (late Sept–early Oct).
A design hotel on the headland at Cape Ashizuri, Shikoku's southernmost point, renewed in 2024. It holds one of the source wells of the Ashizuri hot-spring cluster — a natural radon spring, mildly alkaline, with a legend linking it to Kōbō Daishi — enjoyed in an open-air bath overlooking the Pacific, two indoor tubs and a Shimanto-cypress sauna. Sunsets into the horizon and the night sky are the draw. Day use 15:00–21:00 (last entry 20:30), ¥1,100 including bathing tax. Closed Tuesday to Thursday (with exceptions in peak season), so confirm ahead. About 90 minutes by bus from Nakamura Station, or an hour by car from Shimanto city. Combine with the cape lookout, the aquarium and the free Manjirō foot bath.
A single inn at the end of the Nyūtō bus line, wrapped in old-growth beech forest and named for the river crabs once abundant in the nearby stream. Unusually for Nyūtō, the water is clear and colourless — a bicarbonate spring with drifting white flakes and a gentle feel. The signature is Karako-no-yu, a mixed open-air pool some 50 m from the building in the woods, magical in snow season; there are also separate indoor wooden and rock baths. Day use 9:00–16:30, ¥800. Covered by the Yumeguri-chō pass (¥2,500, valid one year) for all seven Nyūtō inns — the classic combo is with Tsuru-no-yu and Taenoyu. About 50 minutes by bus from Tazawako Station to the Nyūtō Onsen stop.
The town-run bathhouse at the heart of Toyotomi Onsen, Japan's northernmost hot-spring village, an hour by car from Wakkanai airport. The spring was struck during oil exploration in 1926 and still carries traces of petroleum — a rarity worldwide, with an oily smell and slippery feel. It is famed as a 'miracle bath' that draws people from across Japan seeking relief from atopic dermatitis and psoriasis. Besides the general bath there is a cooler cure bath for long soaks. Admission is a cheap ¥510; open 10:00–21:00 (last entry 20:30), closed every other Thursday. The canteen serves jingisukan lamb and set meals. Fit it into a far-north drive with the Sarobetsu wetlands and views of Mt Rishiri. About 10 minutes by bus from JR Toyotomi Station.
A quiet bath-only annex within the Tenzan Tōjikyō grounds along the Sukumo River, up the valley from Hakone-Yumoto. Where neighbouring 'Higana Tōji Tenzan' is a full-day complex with lounges and dining, Ikkyū has no indoor bath at all — just open-air tubs of wood and stone fed free-flowing by two springs, a sodium-chloride and an alkaline simple spring. Silver-ion sterilisation (no chlorine smell), spare design and a hushed, no-chatter atmosphere keep regulars loyal. ¥1,200; open 11:00–20:00 (until 21:00 weekends and holidays, last entry one hour before), closed Thursdays. On weekdays a ¥300 'hashigo' ticket lets you add Tenzan next door. About 5 minutes from Hakone-Yumoto Station by the inns' shuttle bus or taxi, or a 25-minute walk.
A three-storey wooden former inn built in 1928 on the Matsukawa River, now run by Itō city as a cultural facility and a masterpiece of early-Shōwa architecture. The carved transoms, rooftop lookout and guest rooms where rival carpenters showed off are worth the ¥200 admission alone — but on Saturdays, Sundays and holidays, 11:00–19:00, you can also bathe in the tiled 'large' and 'small' bath halls (¥500 adults including admission; halls swap by gender). The water is Itō's simple spring. Note the baths are closed on weekdays. Seven minutes on foot from Itō Station; combine with the riverside promenade and the old spa quarter opposite — a treat for lovers of retro buildings.
One of the three public 'outer baths' of Bessho Onsen near Ueda, the spa village nicknamed 'Kamakura of Shinshū'. Ishiyu is famed as the hidden bath of warrior Sanada Yukimura in Ikenami Shōtarō's novel Sanada Taiheiki; its tub is built around natural bedrock, filled free-flowing with faintly sulphurous, mildly alkaline water. Open 6:30–21:30 (last entry 21:00), closed Tuesdays, a modest ¥300 with free lockable lockers. Pair it with the other two — Ōyu (closed 1st & 3rd Wed) and Daishiyu (closed 1st & 3rd Thu) — plus Kitamuki Kannon temple and the National Treasure octagonal pagoda of Anrakuji, all on foot. Ten minutes' walk from Bessho-Onsen Station on the Ueda Dentetsu line.
In Asama Onsen, Matsumoto's spa hinterland, this day-use bath occupies the house of the hereditary bath-keepers who guarded the lords' private 'Goten-yu' for 400 years, since castle lord Ishikawa Kazumasa. Old garden trees and displays on the bath-keepers' history give the place the feel of a heritage site; the clear, mildly alkaline simple spring is fine-textured on the skin. Besides the main hall there is an open-air bath in a separate wing and a rest room, and many visitors come straight from Matsumoto Castle. Open 9:00–21:00 (last entry 20:00), closed Mondays (or the next day after a holiday), ¥900. About 20 minutes by bus from Matsumoto Station to Asama-Onsen Bunka Center-mae, then 10 minutes on foot.
The town-run communal bath at the heart of Yumura Onsen in northern Hyōgo, where the 98 °C 'Arayu' source boils eggs and vegetables for visitors on the banks of the Haruki River. Bicarbonate water flows freely through separate men's and women's main baths, with an open-air tub, sauna, an assisted bath and an upstairs rest room. ¥500 for non-residents; open 9:00–21:00, closed on the 15th of each month. No towels or soap are provided — bring your own or buy at reception. Parking is free for two hours for bathers. About an hour by car from Kinosaki; pairs well with the San'in Kaigan Geopark or Hamasaka's snow crab season (Nov–Mar).
One of Kyūshū's largest wooden bathhouses, in the centre of the old castle town of Yamaga in northern Kumamoto. Built in the Edo period as a rest house for the Hosokawa lords, its Meiji-era rebuild is attributed to Sakamoto Matahachirō, the master carpenter of Dōgo Onsen Honkan. Faithfully reconstructed in 2012, the curved-gable entrance, dragon transoms and high-ceilinged bath hall feel far grander than the ¥350 admission. The water is a clear, silky alkaline simple spring, with a drinking fountain. Open long hours, 6:00–24:00 (last entry 23:30), closed the 3rd Wednesday. Soap and towels from the vending machine. Combine with the Yachiyoza theatre (Important Cultural Property), the Buzen Kaidō streetscape and the August lantern festival.
The communal bath at the centre of Hirayama Onsen, a scatter of quiet inns in the hills ten minutes by car from Yamaga. The 1961 Hirayama Onsen Center was rebuilt in 2016 with an open-air bath added to the indoor one. The water is Hirayama's signature slippery alkaline sulphur spring — called one of Kyūshū's finest skin-beautifying baths — used 100% free-flowing. You can drink it or take some home, and the lobby sells local vegetables and eggs. ¥400; open 6:00–21:30, every day. About 11 minutes by bus from Yamaga bus centre to Hirayama-Onsen-mae, then a minute on foot. Combine with Sakura-yu for a Yamaga bath-hop.
A locals' favourite hot-spring bathhouse three minutes on foot from Sōen Station, one stop from Sapporo on the Hakodate Line. Natural sodium-chloride spring water pumped from below fills two open-air baths and three indoor tubs, plus an electric bath, a hot sauna, a steam sauna and a cold plunge — all for ¥500, among the cheapest in the city. Open 7:00–25:00 (last entry 24:00), from early morning to late night, with a large rest area. Towels are sold and bath towels rented, so you can come empty-handed. Free parking for about 200 cars. Handy between sightseeing, for an early-morning reset or before heading to New Chitose. Open daily (occasional maintenance).
Takayama's largest day-use onsen, ten minutes by car from the old town, using free-flowing mildly alkaline water from 1,000 m underground. A 'hot-spring health land' with ten kinds of baths — indoor, open-air, walking bath, electric bath — plus sauna, a cheap restaurant with a hundred Japanese, Western and Chinese dishes, basic lodging from ¥2,500 a night, karaoke and Korean-style body care. Open 7:30–23:00 (last entry 22:30; open-air bath 15:30–22:00), every day; ¥1,150, or ¥750 for the night bath after 21:00. About 10 minutes by car from Takayama Station, with local buses too. Handy for guesthouse stayers with tiny bathrooms, or on the way back from Shirakawa-gō and Okuhida drives.
One of the Beppu Hattō 'eight springs', Horita sits on the old road towards Yufuin and its municipal bathhouse is among the busiest in Beppu's city-run network. Rebuilt in 2003, it has a bright, airy indoor hall and a seasonal open-air bath set among plantings and rock work; the two differently styled bath wings swap between men and women each week. The water is a gentle simple spring. ¥300; open 6:30–22:30, closed the first Wednesday (next day if a holiday). Afterwards, rest in the lounge overlooking Beppu Bay. Amenities are sold, so bring a towel. About 13 minutes by Kamenoi bus from Beppu Station's west exit to Horita-Onsen-mae, or 3 minutes by car from Beppu IC.
A large super-sentō about 25 minutes from central Osaka on the Kita-Osaka Kyūkō line, ten minutes on foot from Minoh-Semba-Handai-mae Station (opened 2024). Certified therapeutic bicarbonate-chloride spring water feeds the open-air bath, joined by a high-concentration carbonated bath, pot tubs, lying baths and more — 17 tubs in all — plus a hot sauna with automatic löyly and an outdoor cool-down area. The stone-bed spa (extra ¥800) comes with some 6,000 manga and no time limit. Open 9:00–2:00 (from 6:00 on weekends and holidays; last entry 1:00); ¥1,000 weekdays, ¥1,100 weekends. Dining and relaxation services on site — an easy stop after hiking to Minoh Falls or visiting Expo '70 Park and EXPOCITY. Two maintenance closures a year.
Founded in 1691 and regarded as Japan's oldest surviving hot-spring inn building, this Shima Onsen institution in Gunma stands across a red bridge; the main house, said to be one of the models for the bathhouse in Spirited Away, is an Important Cultural Property. The celebrated Genroku-no-yu, built in 1930 in Taishō-romantic style, has five tubs set into a stone floor lit by arched windows, with water welling up from below. Shima's sulphate water is counted among Japan's three great baths for digestive ailments and can be drunk. Day use 10:00–17:30 (last entry 17:00), ¥1,500 with face towel, covering Genroku-no-yu, the mixed rock bath and private baths. Tattoos accepted if covered with stickers. About 40 minutes by bus from Nakanojō Station to the Shima Onsen terminus.
A mountain hot spring in the temple-gate village of Kurama, about 30 minutes from central Kyoto on the Eizan railway, home of the tengu legends. The open-air Hōroku-yu sits in a cedar grove facing the Kitayama hills and becomes a snow-viewing bath in winter. The simple hydrogen-sulphide water carries a faint whiff of sulphur that suits the mountain air. The open-air-only course is ¥1,500 weekdays / ¥1,600 weekends (towels extra); the full day course with indoor bath, open-air bath, sauna, lounge, towels and robe is around ¥2,600 on weekdays. Open 10:00–21:00 every day, no reservation. Ten minutes on foot from Kurama Station or by free shuttle. The classic way to end a visit to Kurama-dera or the hike over to Kibune — for anyone who wants a genuine onsen in Kyoto.
A neighbourhood-run communal bath at the foot of the stone stairway to Izusan Shrine, north of Atami Station and linked to Minamoto no Yoritomo and Hōjō Masako. The water comes from Hashiriyu, one of Japan's three ancient springs — a cave source where hot water once 'ran' down to the sea — a 71 °C calcium-sodium chloride spring, free-flowing with only water added to cool it. Inside it is pure Shōwa: an attendant's counter and two tubs, one hot, one lukewarm. ¥350; open afternoons only, roughly 14:00–20:00, closed Thursdays. Bring towel and soap. Pair with the free Hashiriyu cave just below and the 837-step climb to Izusan Shrine for a slice of Atami history. About 7 minutes by bus from Atami Station to Aizomebashi.
An open-air-only public bath on the gravel banks of the Gamata River at Tochio Onsen in the Okuhida valley. The rock-ringed men's and women's pools have no screen on the river side, so the rushing Gamata and the Northern Alps fill the view — starry skies at night, snow scenes in winter, wild Okuhida all year. Free-flowing simple spring water; there are changing huts but no reception — drop a donation (about ¥300) in the wooden box at the entrance. Open 8:00–22:00 (from 12:00 Mon, Wed and Fri for cleaning); no closing days, but suspended when the river is high. Bring a towel. An easy stop between the Shinhotaka Ropeway and Hirayu, or a night soak for anyone staying in Tochio's inns.
A wooden inn founded in 1789 at Kamasaki Onsen, a mountain cure spa in Shiroishi, Miyagi, where villagers are said to have struck hot water with the tip of a sickle more than 600 years ago. Its iron-bearing sulphate water, known as the 'medicinal bath of Ōu', turns tea-brown and has long been trusted for cuts and bruises. Gleaming dark corridors, glass shōji and traces of the old self-catering cure wing make it irresistible to lovers of retro Japan. Day use 11:00–14:00, ¥800; bring a towel. Fifteen minutes by car from Shiroishi-Zaō Station — a convenient stop with Shiroishi Castle, the Yajirō kokeshi village or the start of the Zaō Echo Line. Day bathing is sometimes suspended when busy or for cleaning, so phone ahead.
A solitary forest inn five minutes by car from central Kurokawa, where the only sound is the headwaters of the Chikugo River. On roughly 10,000 m² of grounds sit the mixed open-air Moyai-no-yu and the women-only Shiki-no-yu, fed free-flowing from two private springs; the indoor bath has a faint blue tint. Day use covers the open-air baths only, 08:30–21:00, ¥600 for adults, and Kurokawa's 'nyūtō tegata' bath-hopping pass (¥1,500 for three baths) is accepted, so pairing it with inns in the village is the classic plan. There is a free rest corner after bathing. Closures are irregular — phone ahead.
The flagship bathhouse of Nagayu Onsen in Ōita, which bills itself as Japan's best carbonated spring. Its European look comes from a sister-city tie with Bad Krozingen in Germany, and inside the water flows straight from the source with no heating or dilution. The rust-brown sodium-bicarbonate water is rich in iron and CO₂, and fine bubbles cling to your skin in the tub. Gender-separated indoor and open-air baths on the 1st and 3rd floors swap daily. Open 06:00–21:00 (last entry 20:00) — great for an early soak; closed the 3rd Wednesday of each month. Adults from outside the city pay ¥700; a private family bath is ¥2,400 for 50 minutes. Cards and QR payment accepted. 25 minutes by car from JR Bungo-Taketa Station.
Three minutes on foot from Gozen-yu, this is the gender-separated communal bath locals use every day. You pay ¥300 at a ticket machine and walk in — no attendant, and the bathroom holds just one indoor tub. Nagayu's bicarbonate water flows freely and has stained the spout area brown with mineral deposits. Open 06:00–22:00 (last entry 21:30), closed the 4th Wednesday. No soap or shampoo, so bring your own. If you are walking around Nagayu, add this ¥300 locals' bath to Gozen-yu and the free riverside Gani-yu.
At 1,800 m in Manza Onsen — said to have the highest sulphur content in Japan — this is the most rustic of the old spa-cure inns. The wooden bathhouse holds just one indoor tub per gender, but the milky acidic sulphur water is thick and hot enough to leave you drowsy afterwards. It is known for its 'Sarunokoshikake-yu', in which extract of a bracket fungus has long been added to the water. Day use 10:00–16:00, ¥700 for adults, towels sold for ¥250. For onsen fans who want an old-school cure-bath feel amid Manza's big resort hotels. The building has tilted due to ground subsidence, so phone ahead to confirm it is operating. About 40 minutes by bus from Manza-Kazawaguchi Station.
A mid-sized hotel on the lakeside promenade of Lake Tōya, and a rarity here: day bathing for just ¥600. The 'Tono-yu / Hime-yu' baths have granite-clad open-air tubs, bubble baths and a sauna, and the bicarbonate–chloride–sulphate water keeps you warm long after. Day use is accepted 13:00–21:00. From late April to the end of October, the Lake Tōya long-run fireworks go up over the water every night from 20:45, and a stroll along the shore before a soak is a lovely routine. With neighbouring resort hotels charging ¥1,000+, this is the value pick. About 20 minutes by bus from Tōya Station to 'Tōyako Onsen', then 5 minutes on foot.
A public bathhouse (doubling as a self-catering lodge) in the centre of Dake Onsen, about 600 m up the slopes of Mt Adatara. The acidic spring is rare nationally; piped roughly 8 km from the source, the water cools on the way and arrives milky white with a slight tingle. The basement bath is indoor only but 100% free-flowing. Day use 10:00–19:00 (last entry), ¥400 for adults, closed Tuesdays. The sloping resort street keeps traces of the town's playful 'Nikoniko Republic' era and has a free foot bath. About 25 minutes by bus from Nihonmatsu Station; popular with hikers coming down Mt Adatara and skiers.
The oldest communal bath in Echigo-Yuzawa, near the inn where Kawabata Yasunari wrote Snow Country — he is said to have bathed here himself. The tub fits only five or six people, but the sulphur-scented free-flowing spring is a rarity in Yuzawa and the star of the town's five-bath 'sotoyu' circuit. Adults pay ¥850 including bathing tax (revised 2026); open 10:00–21:00 (last entry 20:30), closed Tuesdays. Soap and shampoo provided, towels sold for ¥200. It sits up a slope 25 minutes' walk from Echigo-Yuzawa Station, or 10 minutes from Gala-Yuzawa Station; only 10 parking spaces.
About 12 minutes on foot from Murodō terminal, the hub of the Tateyama-Kurobe Alpine Route, this inn at 2,410 m is Japan's highest hot-spring lodging. Milky acidic sulphur water piped from Jigokudani flows 100% free, and outside the window is another world: the 3,000-metre Tateyama range and the volcanic lake Mikurigaike. The bath is indoor only; day use 09:00–16:00, ¥1,100 for adults. The café's blueberry soft-serve and curry are favourites. Open only during the mountain season, mid-April to late November; closed in winter. Especially busy during the Snow Corridor (Apr–Jun) and autumn colours (late Sep–early Oct). With the altitude and strong water, keep your soak short.
A lone inn of the Japan Association of Secluded Hot Springs, deep in Hachimantai National Park amid beech and oak forest. The open-air bath is an unusual greenish milky white — free-flowing simple hydrogen-sulphide water — with a mixed outdoor bath, a women-only outdoor bath and separate indoor baths; from the rotenburo you can see the steam of Japan's first geothermal power station. Day use 08:30–19:00 (last entry 18:00), ¥700 for adults, or ¥900 with hall rest 10:00–15:00. Open year-round, and the snow-buried outdoor bath in winter is the highlight. About 1 h 50 min by Iwate Kenpoku bus from Morioka Station to the Matsukawa Onsen terminus.
Five minutes on foot from Musashi-Koyama Station on the Tōkyū Meguro line, this rare central-Tokyo bathhouse offers two different natural hot springs. The indoor bath is coffee-coloured 'kuroyu' (sodium-bicarbonate water); the open-air bath uses salty rust-brown 'golden water' pumped from 1,500 m below and left free-flowing — both certified as therapeutic springs. Admission is Tokyo's standard sentō rate of ¥550, with sauna and bedrock bath extra. Open 12:00–24:00, from 08:00 on Sundays; closed Mondays (open if a holiday). Close to Meguro and Gotanda, it pairs perfectly with snacking along the Palm shopping arcade. Soap and shampoo provided.
Near the village office of Totsukawa, Japan's largest village, this is the public bath of Tōsenji Onsen, the oldest spring in the village. True to Totsukawa — the first place in Japan to declare all its baths 100% free-flowing — the roughly 60°C sulphur water is cooled without dilution and left to overflow. As the name suggests, the big draw is the streamside open-air bath at the bottom of a long staircase, where you soak facing a small waterfall; the water runs hot. There are also an indoor bath and sauna. ¥800 for adults, open 08:30–20:00, closed Thursdays. The lunch-only diner is known for its 'dam curry'. The nearby Izumi-yu is ¥100 cheaper, but come here for the waterfall. A remote spot about 3 h 40 min from Yamato-Yagi Station on Japan's longest local bus route.
Tawarayama Onsen, in the hills of Nagato, Yamaguchi, has 1,100 years of history and still lives by 'sotoyu' culture: the inns have no baths of their own, so even overnight guests walk in yukata to the two communal bathhouses, Machi-no-yu and Hakuen-no-yu. Hakuen-no-yu is the newer of the pair, with three tubs — a lukewarm No.1 bath straight from the source, a heated hotter No.2 bath and an open-air bath — showcasing silky pH 9.9 alkaline water. ¥850 for adults, open 12:00–21:00, closed Tuesday to Thursday (Machi-no-yu runs daily 06:00–22:00 for ¥650). A free foot bath sits halfway up the entrance stairs. About 20 minutes by bus from Nagato-Yumoto Station.
The communal bath of Maga Onsen, a tiny hamlet of stone stairways on a slope above a tributary of the Asahi River in the Yubara Onsen area. Legend says a defeated warrior healed his wounds here some 700 years ago. The star is the 'Makuyu', a mixed rock bath of about 1.6 × 2 m and 1.2 m deep, so you soak standing up — often called Japan's smallest mixed bath — with lukewarm 39°C water bubbling up through cracks in the rock floor. The men's and women's baths connect to it and cost ¥250; the Makuyu is ¥400 (max 8 people, one hour) and a private bath ¥1,300 for up to three. Open 08:00–21:00 (last entry 20:10), closed Tuesdays (open on holidays). No towels allowed in the mixed bath, so be prepared. About 20 minutes by car from Chūgoku-Katsuyama Station.
Halfway along Ideyu-zaka, the steam-wreathed main street of Beppu's Kannawa district, this communal bath is run by the local residents' association. In typical Beppu style the changing area and bath share one room, and hot sodium-chloride water rich in metasilicic acid flows freely. Visitors pay only ¥100 — technically a coin-locker fee rather than admission. Open 06:30–21:00 daily. No soap or shampoo and minimal washing space, so follow local manners: quiet and quick. There is a toilet on the little square out front, and the Jigoku-mushi steam-cooking workshop and Umi-jigoku are two minutes away, making it an easy stop on a Kannawa stroll. Counts toward the Beppu Hattō Onsen-dō stamp rally.
A hidden spring on the site of an old copper mine in the hills of Kumano, Mie. The abundant water is entirely free-flowing with no dilution or heating; the clear sodium-chloride spring warms you to the core. The cedar-scented bathhouse, rebuilt in 2015, has an indoor bath, an open-air area with standing, half-body and lying baths, and a private bath for ¥1,080 per hour. Admission ¥600 for adults, open 09:00–21:00 (last entry 20:15), irregular closures. A trolley train through the old mine tunnel (about 10 minutes) links it with Iruka Onsen Seiryūsō and is a famous ride in itself — but as of 2026 it is suspended for safety inspections, so check ahead. Half-price admission on the 26th of each month. About 40 minutes by car from Kumano-Ōdomari IC.
The communal bath of Kawaji Onsen, upstream of Kinugawa on the clear Ojika River. An old cure spa — 'burns to Kinugawa, wounds to Kawaji' went the saying — it uses its own mildly alkaline spring 100% free-flowing with no chlorination. Besides separate indoor and open-air baths there is a mixed rock bath open to the river, where you soak in lukewarm water facing the stream and hills (bathing garments allowed). A low-temperature sauna, private bath (¥4,000 / 50 min) and rest room complete it. Adults pay ¥1,000 (¥500 for Nikkō residents); open 10:00–20:00 (last entry 19:30), closed Wednesdays (next day if a holiday; open through Golden Week). Fifteen minutes on foot from Kawaji-Yumoto Station on the Yagan Railway, or about 15 minutes by car from Kinugawa-Onsen Station — easy to combine with Kinugawa.
A town-run bathhouse right in front of Shirara-hama, the famous white-sand beach. Built like an old-fashioned sentō with an attendant's counter, its second-floor bathroom opens through big windows onto the beach, blue sea and sky — a ¥420 view bath you would never expect in a resort. The 66.8°C sodium-chloride 'Suzushi-yu' source flows freely, and the strongly salty water keeps you warm long after. Open 09:00–11:00 and 14:00–21:30 (last entry 21:00; 07:00–09:00 is residents only), closed Thursdays. Soap and shampoo sold for ¥40; no hair dryers. One of Shirahama's 'sotoyu' circuit with Saki-no-yu and Muro-no-yu — locals rinse off the sand after a swim and come straight in. About 15 minutes by bus from Shirahama Station to 'Shirarahama'.
In the town centre of Ibusuki, famous for its sand baths, this is one of the oldest communal baths, dating from 1882. Locals call it 'Muran-yu'. Its pride is the wooden bathhouse and the spring that wells up straight through the floor of the tub; there are no taps — you scoop the emerging water with a bucket to rinse, the old way — and there are two tubs, hot and lukewarm. The sodium-chloride water is strongly salty in true Ibusuki fashion and keeps you warm for ages. Adults drop ¥350 into the unattended fee box; open 08:00–22:00. No soap provided, so bring your own. About 13 minutes on foot from Ibusuki Station. For onsen fans who want a 'real locals' bath' after the Saraku sand-bath hall; entry may not be possible during cleaning or crowding, so check closure days in advance.
Hijiori Onsen, 1,200 years old, is a cure-spa where inns huddle at the bottom of a caldera in Ōkura village, Yamagata. Right in the middle of the street stands Kami-no-yu, the only communal bath open to visitors. A small bathhouse with an attendant's counter, it has slightly hot free-flowing sodium-chloride/bicarbonate water and a tiny Yakushi shrine in the corner of the tub. Adults pay ¥400 (free for guests of the village inns); open 08:00–18:00 (until 17:00 in winter), no bathing on Thursday mornings for cleaning. The Hijiori way is to pair it with the morning market that sets up from about 5–6 am (Apr–Nov). In winter this is one of Japan's snowiest places, and just walking the street between snow walls is an experience. About 55 minutes by bus from Shinjō Station.
The communal bath at the heart of Nuruyu Onsen in Kuroishi, Aomori, a spa with more than 400 years of history. It is ringed by 'kyakusha' — simple self-catering cure lodgings with no baths of their own, whose guests all walk over here — a form of spa life now rare even in Tōhoku. The bathroom is as roomy as a sentō, with 100% source water (sodium chloride-sulphate) cooled by a special method without dilution and split into hot and lukewarm tubs. Adults pay ¥350; open long hours from 05:00 to 22:00 (last entry 21:30), daily (occasional closures in April and November). No soap provided. Kokeshi-doll workshops and the Tsugaru Kokeshi Museum are nearby. About 25 minutes by bus from Kuroishi Station.
A lone inn in a steaming fumarole field at about 1,000 m on the Akita side of Hachimantai. One of Tōhoku's great cure spas — 'arrive on horseback, leave on your own two feet', as the saying went — it is also famous for its ondol-heated cure wing. The main bathhouse lines up seven kinds of tubs: the signature box steam bath, a mud bath, a cascade bath, a 'volcano bath' and an open-air bath, all fed by milky acidic sulphur water. Day use 10:30–15:00 (last entry 14:00), ¥800 for adults, closed Tuesdays (plus maintenance days). Behind the inn a nature trail loops past mud volcanoes and vents in about 40 minutes. About 1 h 55 min by bus from Tazawako Station on the Hachimantai summit line (usually late Apr–mid-Oct); in winter come by local bus from Kazuno-Hanawa Station or by car.
A free, gender-separated open-air bath at the top of Tsubame Onsen, a trailhead village at about 1,100 m on Mt Myōkō. Five minutes up a mountain path from the village you find only a simple plank changing hut and a rock tub, where flakes of 'yunohana' drift in milky sulphur water. Known as a 'triple beauty bath' for combining sulphur, bicarbonate and sulphate, it faces the flanks of Myōkō. Free of charge from sunrise to sunset, open April to November (closed in winter; boots needed while snow lingers); no bathing on Monday and Friday mornings for cleaning. Fifteen minutes further along the gorge is the mixed 'Kawara-no-yu' (Jul–Nov). No soap allowed and minimal changing space, so follow local etiquette. Walk from the terminus of the bus (about 21 min) from Sekiyama Station.
Tsuetate Onsen, where inns line both banks of the Tsuetate River on the Kumamoto–Ōita border, claims 1,800 years of history as the bath water of the infant Emperor Ōjin. Moto-yu is the communal bath said to be its origin: a single half-open tub carved into the rock face beside the riverside promenade — mixed, free and open 24 hours, nothing more. The sodium-chloride water, cooled from a 98°C source, leaves the skin soft. Changing space is basic and screening minimal, so many people wear bathing garments or a wrapped towel; early morning or night is the best time. Combine it with a wander through the 'sedoya' back alleys and, in May–June, the 3,500 carp streamers strung across the river. About 50 minutes by bus from Hita Station.
Yunohama Onsen is a seaside spa on the Sea of Japan in Yamagata's Shōnai region. This municipal communal bath sits on the ground floor of the 'Cospa' community centre on the roundabout at the centre of the resort and is the locals' everyday bath. It uses a blend of Yunohama's springs — sodium-calcium chloride water — free-flowing with only a little dilution, in a single no-frills indoor tub. Adults pay ¥400; open in two sessions, 06:00–07:00 and 10:00–21:30, closed 2nd and 4th Thursdays. Soap and shampoo sold for ¥200, towels ¥100. The beach is two or three minutes' walk away, and the best plan is to watch the famous Yunohama sunset before soaking. About 35 minutes by bus from Tsuruoka Station.
A Western-style bathhouse on the shore of Lake Suwa, built in 1928 by the Katakura silk dynasty for the welfare of local residents and now an Important Cultural Property. Its famous Sennin-buro is a marble pool 1.1 m deep — you bathe standing, pebbles underfoot, surrounded by stained glass and sculpture — named for the hundred people it can hold at once. It uses Kamisuwa's spring water and also has a sauna and jet bath. Adults ¥750, open 10:00–20:00 (last entry 19:30), closed 2nd and 4th Tuesdays. The 2nd-floor rest room (until 19:00) and canteen (11:00–15:00) are open to bathers, and tours of the hall building are offered. Eight minutes on foot from Kami-Suwa Station, handy for Suwa Taisha shrine and Takashima Castle.
Hakodate's signature day-use hot spring at the foot of Mt Hakodate, five minutes on foot from the Yachigashira tram terminus. Opened by the city in 1953 and privatised in 2013, when a sauna was added. The high-ceilinged bathroom feels airy; the rust-brown sodium-chloride water is strong and on the hot side, and the open-air bath is star-shaped after Goryōkaku fort. Adults pay just ¥490; open 06:00–22:00 (last entry 21:00), closed 2nd Tuesdays. A 'hands-free set' with towels is sold and there is a canteen. Close to the Mt Hakodate ropeway, Cape Tachimachi and the morning market — bathe with the locals at dawn or to round off a day of sightseeing. Soap and shampoo provided.
Amagase Onsen, where steam rises along the Kusu River in Hita, Ōita, is counted with Beppu and Yufuin among the 'three great springs of Bungo'. Its trademark is the communal open-air baths dotted along the riverbed, and Yakushi-yu is one of the most approachable: a single rock tub, mixed bathing, ¥100 dropped into an unattended box. The 75°C simple sulphur spring is diluted to a comfortable temperature, with a faint whiff of sulphur and a view of the spa street across the river. Open 10:00–22:00 daily; wrapping a bath towel is allowed, which makes it easy for first-timers, and it is lit and atmospheric at night. Stroll the town, rebuilt after the 2020 floods, and try the other riverside baths such as Kanda-yu and Ekimae Onsen. About 10 minutes on foot from JR Amagase Station.
The public bathhouse at the heart of Yamashiro Onsen's 'Yu-no-gawa' square in the Kaga hot-spring region, a spa 1,300 years old. In Kaga communal baths are called 'sōyu', and even ryokan guests walk over in yukata. The entrance reuses the gate of the old Yoshinoya inn; inside is spacious and clean, with one big tub of fresh undiluted water (sodium-calcium sulphate-chloride) flowing freely. Adults ¥500, open 06:00–22:00, closed only on the morning of the 4th Wednesday. A ¥900 combined ticket includes the 'Ko-sōyu' opposite (¥700), a recreation of the Meiji-era bathhouse with Kutani-ware tiles and stained glass — comparing the two is the classic plan. Soap and shampoo are sold, not provided. About 10 minutes by bus from Kaga-Onsen Station.
A natural hot spring to visit after strolling Kawagoe's 'Little Edo' warehouse street. Its own sodium-chloride spring from 1,200 m fills indoor and open-air baths in two zones, 'Wood' and 'Stone', which swap between men and women daily. Nine baths and three saunas in all — a carbonated bath made by dissolving CO₂ into the spring water, a free-flowing source bath, bedrock-bath rooms and a private family bath — make for an in-house bath-hopping course. Adults ¥850 on weekdays, ¥950 on weekends and holidays; open 10:00–24:00 (from 09:00 on weekends and holidays, last entry 23:00), no regular closing day apart from maintenance. Body soap and shampoo provided; a soba-and-udon restaurant, massage and body scrub are on site. Seibu bus from Hon-Kawagoe Station (Seibu Shinjuku Line) to the 'Hōmukyoku' stop; 150 free parking spaces.
The oldest of Itō Onsen's 'Seven Lucky Gods' communal baths, a true locals' bathhouse. The spring is said to have been presented to the third shōgun Tokugawa Iemitsu in the Edo period, and today it runs as the ward-operated Wada-yu Kaikan. The layout is simple — a single indoor bath each for men and women — but the clear, simple-type spring flows in freely and the atmosphere is that of an old-fashioned neighbourhood bath full of regulars. Adults ¥400, children ¥200; open 14:00–22:00, closed Wednesdays (with extra days off in even months — check ahead). Soap and towels are sold, so bring your own. About 15 minutes on foot from JR Itō Station; pair it with the Tōkaikan building and Kinema-dōri street as one stop on the Seven Lucky Gods bath circuit. Parking for 11 cars.
A day-use bathhouse on the main street of Hirayama Onsen, where inns are scattered among the rice fields of Yamaga, Kumamoto. The slippery alkaline simple-sulphur water — famed locally as 'beautifying water' — fills a main indoor pool, electric bath, waterfall massage bath, cold plunge and sauna plus two open-air baths of different sizes. Adults ¥600, children ¥300 (a bath-only course is cheaper still); open 09:30–21:30 (last entry 20:30), closed Thursdays (open if a holiday). Paid private rest rooms (10:00–16:00), a farm-produce and souvenir shop and a café round it out, and the crowd is half locals, half visitors. Kyūshū Sankō bus from Yamaga Bus Center to 'Hiraogi', then 7 minutes on foot; about 20 minutes by car from Kikusui or Nankan IC. Pair with Yamaga's lantern festival heritage and the Yachiyoza theatre.
One of the two public bathhouses of Tawarayama Onsen in Nagato, Yamaguchi, a cure-spa founded over 1,100 years ago. Most inns here have no bath of their own, so guests still pad through the streets in yukata to the outside baths, and Machi-no-yu is the hub of that life. The silky alkaline simple spring flows in untreated, and there is a drinking fountain. Just a plain indoor bath, but it is open right through from 06:00 to 22:00 and costs only ¥650. A bookable private family bath (¥3,500 for three, 08:00–21:00) is attached. There is no regular closing day — only cleaning breaks in July and December. The other bathhouse, Hakuen-no-yu (¥850, with an open-air bath), closes Tuesday to Thursday, so on weekdays Machi-no-yu is the one to count on. About 25 minutes by bus from JR Nagato-shi Station to 'Tawarayama Onsen', then 3 minutes on foot.
A lone inn in the hills of Kitagawa, a 'yuzu village' of some 1,300 people in eastern Kōchi. Its spring, known for over 80 years, is loved locally as silky 'beauty water', and in 2018 the inn was completely rebuilt as Japan's first CLT-construction hot-spring building, using timber from the village. The wood-wrapped main bath, open-air bath and family bath are all 100% source water. Day bathing: adults ¥700, children ¥350, 11:00–21:00 (last entry 20:30), closed Tuesdays. Private baths cost ¥2,200 per group for 50 minutes on top of admission. There is a restaurant serving yuzu dishes, and the Nakaoka Shintarō museum and Monet's Garden Marmottan are nearby — a good stop on a drive toward Cape Muroto. About 20 minutes by car from Route 55; 14 rooms in three types.
A day-use bathhouse right beside the Shinhotaka Ropeway base at the trailhead into the Northern Alps. Descended from a mountain hut, it is unusual in having two different springs — a simple spring and a bicarbonate spring — each served free-flowing. The open-air bath, with the murmur of the Gamata River and the rock peaks of Kasa-ga-take and Shakujō-dake in view, fills with hikers coming off the mountain and sightseers back from the ropeway. Adults ¥1,000, children ¥500; open 09:00–18:00 (last entry one hour before closing), irregular closing days. There is a rest room and a restaurant serving Okuhida fare such as Hida beef and soba. About 90 minutes by bus from Takayama Nōhi Bus Center to 'Shinhotaka Onsen', then 2 minutes on foot; parking for 11 cars (pay car parks nearby).
A big bathhouse in Kanie, just west of Nagoya, open since the 1960s and known among Tōkai-region onsen fans as 'the real thing'. Two of its own springs, one cool and one hot, are blended to bathing temperature and run untouched — no dilution, no recirculation — into both indoor and outdoor baths. The showpiece is a garden-style indoor hall of a scale you would not expect, with pools of various sizes among rocks and greenery. The clear simple spring is soft and leaves you refreshed. Adults ¥700 on weekdays, ¥800 on weekends and holidays; open 13:00–23:00 (last entry 22:30), no closing day apart from occasional maintenance. Soap and shampoo provided; a tatami hall and restaurant on site. About 7 minutes by taxi from Kintetsu Kanie Station or 17 minutes on foot from JR Eiwa Station; 250 free parking spaces. A rare chance at free-flowing source water within 30 minutes of Nagoya Station.
Tottori Onsen is a national rarity — a hot spring rising right in front of a prefectural-capital station — and this Shōwa-retro bathhouse at its heart is about five minutes' walk from JR Tottori Station. Old-style layout with a bandai counter and just one pool split into deep and shallow halves, but the 46°C-plus sodium-sulphate-chloride water is properly hot and leaves skin silky. Adults ¥550, children ¥200; open in two sessions, 06:00–10:00 and 14:00–24:00, closed the 2nd Monday and New Year's Day. No soap provided — bring or buy. Good after walking the Tottori sand dunes or castle ruins, or as a morning bath before an early train. Parking for 11 cars plus coin car parks nearby.
The founding bath of Yunotsu, the port town that once shipped silver from the World Heritage Iwami Ginzan mine, with a history said to go back 1,300 years. It stands in the preserved townscape district and has a legend of a tanuki healing its wounds here. Two pools: the 'hot' one fed directly by the source and a 'cooler' one that is still around 43°C. The strong sodium-calcium-chloride water, thick with rust-brown mineral flakes, is renowned as a therapeutic spring and can be drunk. Adults ¥450, children ¥200; open 06:00–20:00, irregular closures (closed from 15:00 on the 3rd Monday). No soap and no showers — bathe the old way. Comparing it with the other outside bath, Yakushi-yu (¥500), is the classic routine. About 20 minutes on foot or 5 by bus from JR Yunotsu Station.
A day-use bathhouse among the vineyards and peach orchards of Makioka in Yamanashi city, cherished by onsen fans as one of the prefecture's finest 'fresh from the source' springs. About 500 litres a minute of 42°C alkaline simple water wells up naturally and goes straight into the tubs — no heating, no dilution, no recirculation — so fresh water overflows constantly at the spout. The feel is silky; from the cypress indoor bath and the rock open-air bath you can sometimes see Mt Fuji across the Kōfu basin. Adults ¥700 for up to two hours, children ¥500 (four hours with tatami-hall rest ¥1,300; all day ¥1,800); open 10:00–21:00 (last entry 20:15), closed Tuesdays and the New Year period. A restaurant serves hōtō noodles and tempura, and Erin-ji temple and the local wineries are close. About 25 minutes by car from Katsunuma IC or 15 minutes by taxi from JR Yamanashi-shi Station.
A day spa (formerly Aoidake-sō) rebuilt as the centrepiece of Aoidake Nature Park in the Sakai River valley between Miyazaki and Miyakonojō. The alkaline simple spring, once picked among Japan's 'top ten viscous waters', has a silky feel; besides the main bath there are a walking bath, an electric bath, an open-air bath facing the green gorge and a sauna. The optional thermal lounge 'Yurukotto' adds bedrock-bath rooms and recliners for a long stay. Adults ¥700 on weekdays, ¥900 on weekends and holidays (¥1,000 on special days; discounts 07:00–10:00 and after 19:00); baths open 07:00–21:30, every day apart from inspection closures. An RV park, campsite and river-play spots sit alongside, ideal for a family outdoor day. 15 minutes on foot from JR Aoidake Station (pick-up available); about 15 minutes by car from Tano IC.
Because drilling is banned inside the national park, every bath in Unzen runs on naturally rising water. This little communal bath on the edge of the spa town, known locally as 'Dankyū-buro', has just one deep oval pool into which the acidic hydrogen-sulphide spring flows fresh; depending on the season and the day it may be milky white or nearly clear. It is hot, 43–44°C, with a faint sulphur scent. Adults ¥200, children ¥100; open 09:00–22:00, closed Tuesdays. No dryers or amenities — soap is sold — but there are lockers, and parking for four cars. After touring the Unzen Hells, a rare chance to taste the local bath for ¥200, a world apart from the big tourist bathhouses.
A hideaway day spa in a copse of trees near Jindaiji, Tokyo's second-oldest temple, and its soba-shop village. The blackish-brown 'kuroyu' sodium-chloride water from 1,500 m carries compounds from ancient plant matter, feels viscous on the skin and keeps you warm long after. The wooden bathhouse holds an indoor bath, a rock open-air bath, sauna and cold plunge, and an outdoor rest deck among seasonal greenery — more like a country inn than a big spa complex. Adults ¥1,080 on weekdays, ¥1,180 on weekends and holidays, with cheaper 30-minute and one-hour tickets. Open 10:00–22:00 (last entry 21:00), every day apart from inspection closures. A soba restaurant and rest room are on site — a fine finish to Jindaiji temple and the Jindai Botanical Garden. Free shuttle buses from Chōfu and Tsutsujigaoka stations.
A town-run day spa inside the hilly 'Toyama Forest of Health – Green Park Yoshimine', about 15 minutes by car from Tateyama Station, the Toyama gateway to the Tateyama-Kurobe Alpine Route. The clear, mildly alkaline simple spring is piped straight from the source and called 'beauty water'; besides the main bath there is a rustic rock open-air bath, an herbal bath and a sauna. From April 2026 adults pay ¥750 and children ¥380; open 10:00–21:00 (last entry 20:30), closed Tuesdays (plus maintenance days). The park has a campsite, barbecue area, park golf and the Yoshimine Heights lodge, making it a handy stop before or after the Alpine Route or a Tateyama climb. About 5 minutes by car from Iwakuraji Station (Toyama Chihō Railway), 20 minutes from Tateyama IC; 300 parking spaces.
The highest hot-spring inn in Tōhoku, at 1,400 m near the top of the Hachimantai Aspite Line. It opens only from Golden Week to late October; in winter it is buried in snow. Five mixed open-air baths scattered down the slope (plus a women-only open-air bath and separate indoor baths) are fed by sulphur water bubbling up directly through the ground, milky white, and the trademark is smearing the mud from the bottom on your skin as a 'mud pack'. Below spread Mt Iwate and a sea of forest; at dawn, cloud seas and sunrise — truly a bath above the clouds. Simple sulphur water at temperatures from tepid to hot. Day bathing: adults ¥650, children ¥350, with a long 08:00–18:00 window, busy with hikers back from the Hachimantai summit trail. The open-air baths are mixed, so bathing garments and wrap towels are allowed. About 2 hours by bus from Morioka Station or 40 minutes by car from Matsuo-Hachimantai IC. Mobile reception is poor.
A day-use hot spring at the heart of the Hiruzen highlands in northern Okayama, 500–600 m up. Its great appeal is the open-air bath, where you feel the highland breeze and look out over Jersey-cattle pastures and the three Hiruzen peaks through the seasons — cool in summer, autumn colour, snow-viewing in winter. The alkaline simple water is gentle on the skin, and the facility covers the basics: main bath, jet bath, sauna and open-air bath. Adults ¥740, children ¥420; open 10:00–22:00 (until 21:00 December–March; last entry 30 minutes before), closed Wednesdays (next day if a holiday; open during Obon and Golden Week). About 20 minutes by car from Hiruzen IC or 60 minutes by bus from JR Chūgoku-Katsuyama Station. Combine with Hiruzen yakisoba, Jersey soft-serve and a drive toward Mt Daisen. 100 parking spaces.
The lone inn at Gokuraku Onsen, in the hills of Takaharu on the eastern foot of the Kirishima range, with water distinctive enough to be listed among Japan's 'hundred famous springs'. It is a carbonated iron spring (carbon dioxide-iron-calcium-bicarbonate), and the speciality is alternating between the free-flowing tubs, turned rust-red on contact with air, and a 'source cold bath' filled with the highly carbonated mineral water straight from the ground. Sitting in the cold fizzing water as tiny bubbles cling to your skin, then returning to the warm bath, is a routine sauna lovers adore. There is also an open-air bath, a sauna and a reservable private bath. Day bathing: adults ¥600, children ¥250, with long hours from 07:00 to 21:00 (last entry 20:30), except Wednesdays when it pauses 10:00–15:00 for cleaning. A dining room serves Kyushu mountain-and-river cuisine, and private rest rooms and overnight stays suit a cure-style visit. About 15 minutes by car from JR Takaharu Station or Takaharu IC. A hidden gem for Ebino Plateau and Kirishima trips.
The communal bathhouse of Shikano, a castle town in western Tottori City laid out by the warlord Kamei Korenori. Light pours through glass-block walls into a bright bathroom with a main tub, jacuzzi, sauna, cold plunge and an open-air bath facing Mt Jūbō, all generously filled with clear, gentle simple spring water. Inexpensive at ¥550 for adults and ¥280 for children; open 10:00–22:00 and closed only on the first Thursday of the month (the following week if a holiday). There is no restaurant, but a rest area and souvenir counter, plus a roofed foot bath and the 'Omoshiro Market' soba house next door. Pair it with a stroll around the castle town's canals and paving, Shikano Castle ruins park and the Bird Theatre. About 4 minutes by car from Hamamura-Shikano-Onsen IC on the San'in Expressway, or 10 minutes by bus from JR Hamamura Station to 'Imamachi'. Handy on the way back from the Tottori dunes or Uradome coast.
A cure-bath founded in the Meiji era, tucked in the hills of Misato, Shimane, up a tributary of the Gō River. The spring bubbles up directly through gaps in the wooden floor of the tub — 'footspring' water that onsen devotees rank among the finest sources in western Japan. The carbonated iron-bicarbonate water is tepid at around 34 °C, faintly yellow-brown, and coats the body in tiny bubbles. There is one small wooden tub each for men and women, no washing area, soap and shampoo are forbidden, and bathing is limited to an hour: this is a place purely for soaking. Afterwards you can warm up in a heated goemon iron-kettle bath. Adults ¥500; open 08:00–18:00 April–October (last entry 17:00) and 08:00–17:00 November–March (last entry 16:00), closed Thursdays. Room rest is available. With the Sankō rail line gone, driving is realistic: about 1 hour from JR Gōtsu Station or 50 minutes from Ōasa IC on the Hamada Expressway, with a narrow mountain road at the end. Not for those wanting facilities, but unforgettable for those who care about the water itself.
The communal bath at the centre of Yuwaku Onsen, Kanazawa's 'back parlour', about 50 minutes by bus from Kanazawa Station. The spa dates back 1,300 years, prospered as the cure resort of the Kaga lords, and is remembered as where the Taishō-era artist Takehisa Yumeji stayed with his lover; the name comes from a legend of an egret healing its wounds here. Inside, the wood-rich building is calm, with clear, smooth sodium-calcium-chloride water served fairly hot in a simple bathroom (no open-air bath or sauna). Cheap at ¥490 for adults and ¥130 for children, and open 07:00–22:00, it suits a bath-hopping circuit from the ryokan or a finish to a Kanazawa day. Closed the third Thursday (plus occasional days). Combine with the Gyokusen Lake path, the Yumeji museum and the inns' restaurants. Known as the setting of the anime 'Hanasaku Iroha', the village holds the Bonbori lantern festival in October. About 30 minutes by car from Kanazawa-Morimoto IC; parking is limited.
A lone hidden spring at the end of a forest road in the hills of Ikarigaseki, Hirakawa, near the Aomori–Akita border. Famed nationwide for its gushing flow — said to be 500 litres a minute — the overflow from the tub streams across the entire washing floor like a river, and the place once topped a fan vote for the best free-flowing bath in Japan. The sodium-calcium-chloride-sulphate water is pale yellow-brown with an iron tang, and the local way to enjoy it is 'todo-ne': lying flat on the floor and letting the running water wash over you like a sea lion. After a long closure it reopened, renovated, in December 2025: day bathing adults ¥600, children ¥200, 09:00–20:30. Lodging is bed-and-breakfast or room only. Pick-ups from Ikarigaseki Station and Yunosawa can be arranged (contact in advance). Facilities are basic and days and hours can change, so check by phone or on the official social media. About 15 minutes by car from JR Ikarigaseki Station or Ikarigaseki IC; beware of deep snow in winter.
One of the few natural-spring bath complexes on Okinawa's main island, on Route 58 in Ginowan next to the MEGA Don Quijote, about 30 minutes by car from Naha. The tea-brown water pumped from underground is a salty chloride spring that warms you well; besides the indoor bath, carbonated bath, sauna and cold plunge there is a pleasant garden open-air bath among tropical planting. Bedrock baths, private family baths, a recliner lounge and an inexpensive canteen round it out, and towels and shampoo are included so you can come empty-handed. Entry: adults ¥1,500, junior/senior high ¥1,000, children ¥750; open 07:00–23:00 (last entry 22:00), every day. Close to Chatan's American Village and the Ginowan beaches, it is handy on a rental-car trip or as a proper wash after a day in the sea — many divers stop by on the way home. 200 parking spaces.
A municipal cure-bath in a valley at Irinoyama, in the fold of the Asan mountains at the eastern tip of Kagawa. Quiet, wrapped in cherry blossom in spring and maples in autumn, it is a daily bath for locals and a long-standing lodging for pilgrims walking the Shikoku 88 temples. The simple sulphur cold mineral water is praised for its 'slippery-silky' cling on the skin. The layout is simple — main tub, bubble bath, cold plunge and sauna — with a view of hushed green forest. Very cheap at ¥400 for adults and ¥200 for children (and for over-70s); open 10:00–21:00 every day (occasional maintenance closures). The restaurant serves wild-boar hotpot and live-fish dishes, and rooms with two meals start from about ¥6,500. About 20 minutes by car from Shirotori-Ōchi IC on the Takamatsu Expressway, or by Ōkawa bus to 'Fukushi Center (Shirotori Onsen)'. Combine with a Sanuki udon crawl or the old townscape of Hiketa.
A large day spa where you can gaze at Nagasaki's night view — ranked among the 'new three great night views of the world' — from the bath. Built on the slope of Mt Inasa, its rooftop open-air bath looks down over Nagasaki harbour and the city, which turns into a sea of lights after sunset. The alkaline simple water fills carbonated, electric and jet baths; there are several saunas and cold plunges, six family baths with rest rooms, a suite of bedrock baths (extra charge) and a self-service canteen. Adults ¥850 on weekdays, ¥900 on weekends and holidays, children ¥450; family baths from ¥3,000 for 60 minutes. Open late, 09:30–01:00 (until 02:00 on Fridays, Saturdays and holiday eves; last entry 30 minutes before), with no fixed closing days apart from maintenance. A free shuttle bus runs from JR Nagasaki Station (about 20 minutes), a big plus without a car. The classic plan pairs it with the Inasayama ropeway: see the view from the summit, then soak. 320 parking spaces; payment is mainly cash.
A natural-spring bath complex about 5 minutes on foot from Minami-Tama Station (JR Nambu Line) in Inagi, amid the greenery of the Tama hills. The mildly alkaline water from 1,700 m down is pale amber and soft on the skin; the outdoor area has a free-flowing rock bath, pot baths, lie-down baths, a carbonated bath and seasonal specials, while indoors are a high-concentration carbonated bath, jet baths, a sauna with löyly sessions and a cold plunge. With more room than central-Tokyo spas, its outdoor rest deck among trees is a real draw. Entry: adults ¥1,000 on weekdays, ¥1,200 on weekends and holidays; children ¥520/¥680; bedrock baths extra (¥750 on weekdays). Open 09:00–01:00 on weekdays and 07:00–01:00 on weekends and holidays (last entry midnight). Closed only on the third Tuesday of March, June, September and December. Restaurant, body care and a manga corner on site. About 40 minutes from Shinjuku via the Keiō and Nambu lines, easy to pair with Yomiuriland or a walk in the Tama hills.
A big bath complex on the Kanzaki River in Toyonaka, about 20 minutes north of Umeda, whose main draw is an authentic Korean-style jjimjilbang — rare in Kansai. Sauna fans rate it highly for the large natural-spring open-air bath, cut-stone bath, pot baths, a sauna with löyly sessions every two hours, cold plunge and plenty of chairs and loungers for outdoor rest. The extra-charge 'Bijōbō' zone offers several low-temperature sauna rooms at 40–70 °C and a dome-shaped hanjeungmak at around 100 °C — Korea's steam-bath culture in Osaka. Entry: adults ¥900 on weekdays, ¥1,000 on weekends and holidays; children ¥500/¥550. Open 10:00–02:00 (last entry 01:00), every day. Besides 1,200 free parking spaces, free shuttle buses run from Hankyū and Kita-Osaka Kyūkō stations, so it is easy without a car. Restaurant, body care and relaxation rooms on site; being close to Itami Airport, it is a good place to kill time before or after a flight. Very busy on weekends and holidays.
The representative drop-in bath of the Mizusawa spa cluster on the Tazawako plateau, on the road up to Nyūtō Onsen. Less famous than Nyūtō's hidden inns, it nonetheless runs an abundant sulphur-calcium-magnesium-sulphate-chloride spring free-flowing, and its bluish milky water is praised as 'silky and moisturising'. The standout is an open-air bath about a metre deep in which you soak standing up — one of only two such deep outdoor baths in the area. Men and women each have two indoor and two outdoor baths, and the waterfall massage runs all the time. Adults ¥900, primary-school children and under free; open 10:00–20:00 (building closes 21:00), irregular closures (open through Golden Week, Obon and New Year). Lodging is available, and it makes a good alternative when Nyūtō is crowded or a stop after Tazawako ski slopes or a climb of Mt Akita-Komagatake. About 25 minutes by Ugo Kōtsū bus for Nyūtō Onsen from JR Tazawako Station to 'Mizusawa Onsenkyō', right by the stop; 60 parking spaces.
The oldest naturally rising spring of Hinatayama Onsen, the spa district along the Amori River in Hayato, Kirishima, about 15 minutes by car from Kagoshima Airport. Saigō Takamori is said to have favoured it between hunts, and locals call it 'Segodon's bath'. It is unstaffed — you drop your fee in the box at the entrance — and the price is frozen in the Shōwa era: ¥250 for adults, ¥100 for children. Inside is a simple indoor bathroom with two tubs, hot and moderate, filled free-flowing with clear, slippery bicarbonate water; there is a drinking fountain of the spring too. No open-air bath or restaurant, but it opens 06:00–21:00 (last entry 20:30) and a room-only lodge next door costs ¥1,800 including the bath — a boon for travellers. Closed the fourth Monday. About 5 minutes on foot from JR Hinatayama Station; 10 parking spaces. For anyone wanting an unadorned everyday Kagoshima bath before or after Kirishima Shrine or the airport.
The public bath at the centre of Tsuchiyu Onsen, a spa village in the fold of the Azuma range about 40 minutes by bus from Fukushima Station. Rebuilt in 2018 in fragrant timber, it faces the Arakawa mountain stream. The alkaline bicarbonate water is used free-flowing without heating or recirculation — clear and soft but decidedly hot, so adding cold water to taste is the local custom. Besides separate indoor baths there is a private bath (¥1,500), handy for families and couples. Adults ¥500, children ¥250; open 09:00–21:00 (last entry 20:30), closed Tuesdays (open over New Year). The village has foot baths, workshops making Tsuchiyu kokeshi dolls, the steaming Arakawa source and another communal bath, Kajika-no-yu, so a stroll with a kokeshi-painting session fills a pleasant half day. 82 free parking spaces. About 20 minutes by car from Fukushima-nishi IC, and a convenient gateway to the Bandai-Azuma Skyline.
A day spa beside the 'Kamon Park Shinminato' roadside station in Imizu, on Toyama Bay. Its spring is a dense chloride water said to rank among the richest in Japan in dissolved minerals, with several times the free carbon dioxide of shop-bought bath fizzers, so onsen enthusiasts know it as a genuine carbonated chloride spring. The tea-brown, salty, iron-rich water warms you deeply; there are indoor and open-air baths, a sauna and a cold plunge. What stands out is the long day: an early-morning bath from 05:00 through to midnight (23:00 on Sundays), with cheaper early and late rates. Regular admission is ¥970 for adults (¥1,020 weekends and holidays), ¥750/¥780 early or late, ¥520 for children. Closed Mondays (open if a holiday, then closed the next weekday) and January 1. Easy to pair with the Shinminato Bridge, Kaiwo Maru Park and seafood at the Shinminato Kittokito market; about 10 minutes by car from Kosugi IC or 20 minutes by community bus from JR Kosugi Station.
A municipal day bath in the middle of the Yubara Onsen village in northern Okayama, a few minutes' walk from the famous riverside open-air 'Sunayu'. Yubara has a thousand-year history and copious water; this is its source bath, and the pH 9.3 alkaline simple spring is a slippery 'beauty water'. The three-storey building has souvenirs on the ground floor and baths on the first: for each sex an indoor bath, jacuzzi and sauna, plus a barrier-free bathroom usable by elderly and wheelchair guests, which can also be hired as a family bath (¥3,000 per hour for up to three). There is no view, but travellers value it as the place to wash and warm up properly after the mixed Sunayu. Adults ¥800, children ¥400; open 10:00–21:00 (last entry 20:30), closed Wednesdays. A tatami rest room and relaxation corner are provided. About 5 minutes by car from Yubara IC on the Yonago Expressway, or 40 minutes by bus for Hiruzen Kōgen from JR Chūgoku-Katsuyama Station to 'Sayama' then 5 minutes on foot.
A small wooden day bath in Dai Onsen, an old spa hamlet where inns huddle along a narrow valley beyond Hanamaki Onsen. Dai Onsen, over 600 years old, is known for its many hot sources, and here too the free-flowing water is served hot in a little bathroom — a tub that holds ten at a squeeze and five washing stations. There is no lounge or shop, but it opens every day from 06:00 to 22:00 (last entry 21:30) and charges only ¥480 for adults and ¥250 for children — a place that made news by cutting its price when everyone else was raising theirs. Shampoo and body soap are provided, and a handmade soba house next door serves lunch (booking needed). Under 10 minutes by car from Hanamaki Onsen, about 20 minutes by taxi from JR Hanamaki Station; 30 parking spaces. An easy way to feel the cure-resort air of Dai Onsen, a world apart from the big hotels of Hanamaki.
A natural-spring bath complex on a wooded Musashino plot in Saitama's Nishi ward. The source, over 600 litres a minute from 1,500 m down, is a faintly green-tinged amber sodium-chloride water; in the outdoor area the rock bath and 'source tepid bath' are filled free-flowing without heating or dilution, and the place is famous among enthusiasts for its 'nuru-yu culture' of long soaks at around 38 °C. There are also raw-source pot baths, lie-down baths, a high-concentration carbonated bath, a sauna with löyly and a deep cold plunge, and an outdoor rest area facing the trees — remarkably quiet for the suburbs. Adults ¥880 on weekdays, ¥980 on weekends and holidays; children ¥500/¥550; open 10:00–24:00 (last entry 23:30), irregular closures. Restaurant, body care and scrub treatments on site. About 25 minutes by bus from JR Ōmiya Station to 'Seiganji', or by taxi from Ageo or Sashiōgi stations. A must for tepid-bath lovers in the Tokyo area; large car park.
A day bath at the entrance to Sakunami Onsen, 'Sendai's back parlour' up the Hirose River about 40 minutes by car from Sendai Station. Among Sakunami's large ryokan it is a rare place to drop in without staying, though it has lodging too. The bathroom is compact, but the clear, soft water is 100 % natural spring, free-flowing and quietly overflowing. A set with the natural-stone bedrock bath costs ¥2,000, and the women's powder room stocks cosmetics and even face masks, which guests appreciate. Day bathing: adults ¥800, children ¥600 (a ¥500 rate for under an hour); open 10:00–19:00 (last entry 17:00), closed Wednesdays and Thursdays. Bath towels can be hired. About 5 minutes by car from Sakunami Station on the Senzan Line, or by Sendai city bus to 'Sakunami Onsen Iriguchi', right by the stop. Combine with a tour of the Nikka Miyagikyo whisky distillery or the autumn colours of the Hōmei Forty-eight Falls.
The oldest of the communal baths surviving in the spa town of Kaminoyama, a former castle and post town about 10 minutes on foot from Kaminoyama-Onsen Station on the Yamagata Shinkansen. Moved to its present site in 1624, it is said to have been used by the Zen master Takuan. The big tub is split into hot and tepid halves, filled free-flowing with clear sodium-calcium-chloride-sulphate water. With its flagstone washing area and old-style attendant's counter, it charges an astonishing ¥150 for adults and ¥100 for children (hair washing ¥100 extra), and the tatami hall upstairs can be used for a day's rest for ¥300. Open 06:00–22:00 (from 06:30 December–February; last entry 21:30), every day. Take a morning or evening dip with locals while touring Kaminoyama Castle, the samurai-house street and the town's five foot baths. About 25 minutes by car from Yamagata city, 40 minutes from Zaō Onsen. No soap is provided, so bring your own; park in the shopping-street car park opposite.
The public bath at the heart of Yunomine Onsen, one of Japan's oldest springs, where pilgrims purified themselves before Kumano Hongū Taisha. The building, renovated in 2022, also serves as reception for the World Heritage 'Tsuboyu'. There are three bathrooms: the 'Ippan-yu' with hot and tepid tubs (adults ¥400, shampoo provided), the concentrated 'Kusuri-yu' filled with undiluted source water (¥600, no soap allowed) and a 30-minute private family bath (¥700), all sulphur-scented sodium-bicarbonate-chloride water ranging from milky to clear. Tsuboyu (¥800, 30-minute slots) can mean a wait of hours when busy, so the clever order is to take a number and warm up in the public bath first. Open 06:00–21:00 (last entry 20:30), irregular cleaning closures. The village also has the 'Yuzutsu', a 90 °C source where you boil eggs and vegetables, and is the trailhead of the Dainichi-goe section of the Kumano Kodō. About 2 hours by bus from JR Kii-Tanabe or Shingū stations to 'Yunomine Onsen', right by the stop; 46 parking spaces.
A stay-as-long-as-you-like hot spring resort among the fields of Takatsuki, in northern Nagahama near the top of Lake Biwa. The chloride spring pumped from 1,500 m underground is gentle on the skin and keeps you warm, earning it the nickname 'beautiful-skin water', enjoyed in indoor and open-air baths. The men's side has a high-temperature sauna and bubble bath, the women's an herbal mist sauna and jet bath, each with a cold plunge and outdoor cooling area. Inside are a lounge with co-working space, nap 'nest rooms', a restaurant and even lodging, and the complex is open around the clock (bathing suspended during cleaning). The basic bathing course without loungewear costs ¥900 for adults on weekdays and ¥1,200 on weekends and holidays (children ¥500/¥700, valid 6:00–24:00); the relaxed course with loungewear and towels is ¥1,600/¥1,800, with a surcharge from midnight to 6 am. Closed the second and fourth Wednesdays. About 1.9 km from JR Takatsuki Station or 5 minutes by taxi from Kinomoto Station, and close to the Kinomoto IC on the Hokuriku Expressway – a good base for the Kohoku Kannon temples, Nagahama and Lake Yogo.
A lone day-bath building among the fields on the outskirts of Nirasaki, north-west of the Kōfu basin, and a nationally known pilgrimage spot for onsen lovers. Nothing is added or altered – no dilution, heating, recirculation or chlorine – and as you settle into the tepid 38°C sodium chloride-bicarbonate spring, your whole body is coated in fine bubbles, said to be among the most abundant in Japan. The faintly greenish-yellow water carries a whisper of sulfur and iron, and the source running from a tap in the bathroom can be drunk (fizzy, iron-tinged). There is no open-air bath or sauna – just one big indoor pool and washing stations, like a sentō – but the windows frame the Yatsugatake and Kayagatake peaks, and the mild water makes an hour disappear. Adults pay ¥600, children ¥300, soap and shampoo provided. Open 10:00–20:00, closed Tuesdays (next day if a holiday) and Fridays, with free parking for 25 cars. About 10 minutes by taxi from Nirasaki Station on the JR Chūō Line or 15 minutes from Nirasaki IC on the Chūō Expressway.
The communal bathhouse at the heart of Awazu Onsen in Komatsu, Hokuriku's oldest spa, said to have been founded in 718 by the priest Taichō. It stands opposite Hōshi, known as the world's oldest inn, and makes a fitting finale to a tour of the four sōyu public baths of the Kaga spa region (Yamanaka, Yamashiro, Katayamazu and Awazu). The clear, silky sodium sulfate-chloride water (mildly alkaline, high-temperature) runs hot, and soaking shoulder to shoulder with locals warms you to the core. There is no open-air bath or sauna – just an indoor pool – but that simplicity lets the water speak for itself. Adults pay ¥500, elementary pupils ¥150 and infants ¥70; open 8:00–22:00 (last entry 21:30), closed Tuesdays, parking for 10 cars. From JR Awazu Station take the Komatsu Bus for Awazu Onsen to Awazu-Onsen Kitaguchi and walk 2 minutes, or drive about 15 minutes from Kaga IC on the Hokuriku Expressway. Combine with Natadera temple, Yunokuni-no-Mori craft village and Komatsu's aviation museum.
Takeo Onsen is famous for its vermilion gate, a National Important Cultural Property designed by Tatsuno Kingo, architect of Tokyo Station. Beyond the gate lie three public baths – Motoyu, Hōraiyu and Sagi-no-Yu – plus the private Tonosama-yu and Karō-yu, and Sagi-no-Yu is the only one with an open-air bath and sauna. Named for the legend of a white heron (sagi) healing its wounds here, its clear, refreshing mildly alkaline simple spring leaves skin smooth. Alongside the stone indoor bath are a rock-lined outdoor tub, a hot sauna, cold plunge and rest room, and generous hours from 6:30 in the morning to midnight (last entry 23:00) suit travellers. Adults pay ¥740 and children from 3 to elementary age ¥370; open daily except a maintenance break in mid-December. Soap and shampoo are provided, towels sold. About 12 minutes on foot from Takeo-Onsen Station on the Nishi-Kyūshū Shinkansen – a base for Takeo City Library, Mifuneyama Rakuen garden and nearby Ureshino Onsen.
Obama Onsen in Unzen, Nagasaki, is famed for sunsets over Tachibana Bay and for spring water near 100°C – the highest heat output of any onsen town in Japan. Hama-no-Yu is the city-run, old-fashioned public bath of this seaside spa: a classic sentō layout with an attendant's booth and two deep tubs, hot and tepid, brimming with alkaline simple spring water. No soap or shampoo is provided (sachets are sold) – there is nothing here but the water, and bath lovers cherish that purity. Admission is an astonishing ¥150 for ages 6 and up (Unzen residents ¥100), free under 6; open 6:00–22:00 (last entry 21:30), irregular closures. Park free at the nearby Yūhi-no-Hiroba lot (10 spaces). Along the shore are Japan's longest footbath, the 105 m 'Hot Foot 105', and steam cookers, and it is fun to bath-hop to the Wakihama public bath (¥200). About an hour from Isahaya Station by Shimabara Railway and Shimatetsu bus, or an hour by car from Nagasaki city. Taste Unzen's mountain baths and Obama's sea baths in a single day.
A stay-all-day natural hot spring complex in Minami-Kume, Matsuyama, about 15 minutes by car from Dōgo Onsen, 15 minutes from Matsuyama IC and 5 minutes on foot from Iyotetsu Kume Station. It opens at 5 in the morning and runs until 1 am (last entry midnight) every day of the year. Alkaline 'beautiful-skin' water from deep underground fills the indoor, open-air and lie-down baths; a Finnish sauna offers löyly sessions, with a cold plunge and outdoor cooling deck. Admission is ¥1,750 plus ¥150 bathing tax for adults (members ¥1,350 + ¥150), including face and bath towels and loungewear, so come empty-handed; the rock-bed spa is ¥300 extra and children pay ¥1,000 with a locker. Reservable family baths, a recliner lounge, restaurant, body care and scrub salon and even lodging make it a full-day base for Matsuyama sightseeing, and on dates containing a 1 the 'morning bath day' rate drops to ¥1,000. Free parking for 250 cars. Ideal after Dōgo Onsen Honkan for a long, relaxed sauna and rock-bath finish.
An urban natural hot spring 8 minutes on foot from JR Sugamo Station, named after Somei village, birthplace of the Somei-Yoshino cherry. Renovated in August 2025, the interior is now calmer and more Japanese-modern. Amber sodium-chloride strong-salt water pumped from 1,800 m underground holds heat so well it is called the 'bath of warmth', enjoyed in an outdoor rock bath, pot tubs and a garden-view indoor pool, with a hot sauna, cold plunge, outdoor cooling area and a mist sauna on the women's side. Admission including towels and loungewear is ¥2,100 on weekdays and ¥2,900 on weekends and holidays for adults, ¥1,200 for children aged 6 to elementary school – city prices, but with no time limit you can stay all day. Open 10:00–23:00 (last entry 22:30), irregular maintenance closures. Japanese, Western and Chinese dining, a large tatami rest hall, body care, scrubs, esthetics and even hair styling are on site, and a free shuttle bus runs from Sugamo Station; parking for 88 cars (2 hours free on weekdays). Combine it with Sugamo's Jizō-dōri shopping street or Rikugien garden for the closest thing to an onsen getaway on the Yamanote Line.
A big natural hot spring super-sentō 3 minutes on foot from Suminoekōen Station on the Osaka Metro Yotsubashi Line, right beside the Suminoe boat-race stadium. Its pride is a sprawling open-air zone fed by sodium-chloride spring water: a bamboo path, garden-style rock bath, pot tubs and a lie-down 'forest pot bath' that feel far from the city. Indoors are jet baths, an electric bath, the popular high-concentration carbonated pool, a salt sauna, hot sauna and cold plunge. Prices are modest – adults ¥800 on weekdays and ¥900 on weekends and holidays, children ¥400/¥450 – with a hand stamp for same-day re-entry. Open 10:00 to 2:00 am (last entry 1:00), all year except maintenance days. An udon-centred restaurant and rest areas are attached, and free parking for about 850 cars (3 hours with bathing, 6 with a meal). About 15 minutes by subway from Namba, it is a bayside hideaway you can drop into late after USJ or the Nankō waterfront.
A natural hot spring super-sentō in Mibu, the old Shinsengumi quarter, 5 minutes on foot from Tambaguchi Station – two stops from Kyoto Station on the JR Sagano Line. It is a rare in-city onsen useful while waiting for a night bus or to round off a day of sightseeing, open 10:00 to 1:00 am (last entry midnight) all year except two maintenance days. Simple spring water pumped from underground fills the outdoor rock bath and pot tubs, while indoors a variety of jet baths, an electric bath and a carbonated pool line up, and the hot sauna runs löyly sessions; with a cold plunge and outdoor cooling space, Kyoto's sauna fans call it a must-bathe. Prices are friendly – adults ¥840 on weekdays, ¥970 on weekends and holidays, children ¥370/¥420. The in-house Sakura-tei serves soba and hearty post-sauna meals, and there is free parking for 120 cars. Within walking distance of the Kyoto Railway Museum, Umekōji Park and Kyoto Aquarium, and handy after a stroll through Shimabara or Nishi-Honganji.
A stay-awhile day spa about 7 minutes on foot from JR Uno Station, right beside Uno Port where the ferries to Naoshima and Teshima depart. Jazz plays through the calm, old-farmhouse-style interior, and the great draw is the open-air bathing area gazing over the islands of the Seto Inland Sea and the boats passing between them. Outside are four baths around a large rock pool plus pot tubs; inside two pools, a sauna and cold plunge, with a rock-bed spa for an extra fee. The soft sodium-chloride spring rises from underground, and a soak in the sea breeze is the perfect cure for a day of art-island walking. Admission is on the high side – ¥1,700 for adults on weekdays and ¥2,000 on weekends and holidays (children ¥700/¥800) – but towels and loungewear are included, and a recliner lounge and restaurant serving Setouchi fish let you settle in for the day. Open 10:00–22:00 (last entry 21:00), closed the third Tuesday (the following Wednesday if a holiday), parking for 200 cars. A rare chance to bathe while waiting for the ferry back from Naoshima; about 40 minutes by car from central Okayama.