Nagasaki · Shimabara Onsen
Shimabara Onsen Yutorogi-no-yu
島原温泉 ゆとろぎの湯
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.
- Price (adult)
- ¥530
- Hours
- 10:00–21:00 (last entry 20:30)
- Closed
- Wed
- Access
- 8 min on foot from Shimabara Station (Shimabara Railway); 10 min by car from Shimabara port; about 90 min by car from Nagasaki city
- Water type
- Bicarbonate spring
- Tattoos
- Ask ahead
- Admission
- Adults ¥530, children (3 to elementary) ¥270, seniors 70+ ¥320 — cheap, as it is run by Shimabara city. Soap, shampoo and dryers included; towels sold ¥180 (no bath towels). Key lockers ¥100 refundable. Free tatami hall upstairs (bring your own food), no restaurant or shop (vending machines). Parking for 50, free for 2 hours (then ¥100 per hour)
- Baths
- A city-run day-bath (opened in the 1990s) tucked into a Showa-style covered shopping arcade in Shimabara's castle town. Gender-separated indoor main tub, bubble and jet baths, a 90°C sauna and 19°C plunge; no outdoor bath. Spacious wash stations and a tatami hall upstairs. 10 minutes' walk from Shimabara Station and castle, with the spring-fed 'town where carp swim' and samurai residence street nearby. A free foot bath outside. Shimabara Onsen is a relatively young spring drilled after the 1991 eruption of Mt Unzen-Fugen
- Spring water
- Magnesium-sodium bicarbonate spring (hypotonic, neutral, high-temperature), about 62°C at source (some sources give 30°C before heating), pH 7.3. Colourless, tasteless and odourless, soft 'beauty water' that leaves skin smooth; free-flowing source (heated). Indicated for neuralgia, muscle pain, poor circulation, skin disease, cuts and fatigue. Born of the Unzen volcano's heat, it forms with Unzen and Obama the 'three onsen of the Shimabara Peninsula'
- Access & parking
- 10 min on foot from Shimabara Station (Shimabara Railway), inside the covered arcade; 15 min on foot or 5 by car from Shimabara port. About 1.5 h by car from Nagasaki city via Isahaya IC on the Nagasaki Expressway; 30 min (fast ferry) to 1 h by ferry from Kumamoto port to Shimabara. Parking for 50 (2 hours free). Shimabara Castle and the samurai street 10 min on foot
- Phone
- 0957-63-1126
- Official site
- yutoroginoyu.com ↗
- Open in Google Maps
- Google Maps ↗
Essentials
Find a stay on Trip.com
Search and book accommodation across Japan on Trip.com. Day-use bathing needs no booking.
Opens partner booking site (affiliate)
Why go
- Free-flowing municipal bath off the arcade
- ¥530, retro Shōwa feel
- Walk to Shimabara Castle
A city bath inside the castle town's arcade — free-flowing water for ¥530
Shimabara Onsen Yutorogi-no-yu is a city-run day-bath tucked into a Showa-style covered shopping arcade in Shimabara, the castle town at the foot of Mt Unzen-Fugen in Nagasaki. Shimabara is called a 'city of water', with springs bubbling up all over town, a 'street where carp swim', a white-walled castle and a lane of samurai residences — a quiet tourist town whose hot spring, however, is fairly young, drilled after the great eruption of Fugendake in 1991. Yutorogi-no-yu is the public bath the city built so residents could enjoy that spring cheaply: for ¥530 you get an indoor bath of free-flowing magnesium-sodium bicarbonate water, a 90°C sauna and a 19°C plunge, with soap and shampoo included. There is no outdoor bath and the fittings are modest, but the soft water leaves skin smooth, and the charm lies in the everyday atmosphere of local elders and travellers bathing side by side. Ten minutes on foot from the station and castle, it is an easy stop after the castle, spring-water lanes and samurai houses, or while waiting for the Kumamoto ferry; add the free foot bath outside and the arcade's famous 'kanzarashi' (rice-flour dumplings in syrup) for a complete half-day stroll.
Soft bicarbonate water and a 90°C sauna
Walk along the arcade and the 'Yutorogi-no-yu' sign appears with a foot bath in front. Buy a ticket at the entrance machine and hand it in; shoe and changing-room lockers take a refundable ¥100. The tiled bathroom holds a big main tub plus bubble and jet baths, with plenty of wash stations so waits are rare even when busy. The water is clear and odourless at around 42°C, and thanks to its bicarbonate your skin slides smoothly under your hand as the source overflows untouched. The dry sauna runs at a hot 90°C for a local bathhouse, with a 19°C plunge beside it that sauna fans appreciate, though there is no outdoor rest space. With no rotenburo there is no 'view'; instead, the local way is to relax in the upstairs tatami hall with drinks and snacks you brought along. Mornings just after the 10:00 opening or 14:00–16:00 are quieter than the 17:00–19:00 local rush, and Wednesdays are closed. Afterwards, try a chilled 'kanzarashi' dessert in the arcade or rest five minutes away at Shimeiso, a free spring-water garden. As a bathhouse rather than an inn, shampoo is provided but bring your own towel.
Practical details and a Shimabara Peninsula route
Hours are 10:00–21:00 (last entry 20:30), closed Wednesdays. Adults ¥530, children ¥270, seniors 70+ ¥320; soap and shampoo included, towels sold for ¥180, parking free for two hours. Ten minutes on foot from Shimabara Station and five by car from the port, it is ideal for travellers crossing Kyushu by ferry from Kumamoto as 'a bath before or after the boat'. A suggested loop of the Shimabara Peninsula: Shimabara Castle (keep views and Christian-history exhibits) in the morning, the samurai street, the 'carp-swimming' lanes and Shimeiso garden, lunch on local guzoni soup and temari sushi, a bath at Yutorogi-no-yu, then in the afternoon the Unzen 'hells' (40 min by car, a steaming sulphur field) and Unzen Onsen, or the Hara Castle ruins World Heritage site in Minami-Shimabara, ending at sunset in the 105-metre seaside foot bath 'Hot Foot 105' at Obama Onsen. The Unzen Disaster Memorial Hall (Gamadas Dome, 10 min) explains the 1991 eruption and thus how this spring came to be. Stay in a Shimabara hotel or an onsen inn at Unzen or Obama; cherry blossom at the castle in spring, irises along the samurai street in May and kanzarashi in winter mark the seasons. Understand that this is a simple public bathhouse and enjoy it as an onsen woven into local daily life.
Before you go
- No official tattoo policy is published — ask at reception.
- Payment is usually by ticket machine in cash — bring coins.
- Last entry is 30–60 minutes before closing.
Features
Sauna & wellness
Mood & scenery
Price
Who with
Amenities
✔ Verified operating: 2026-09 Operating status and rates cross-checked against the official site and onsen guides (full source notes in Japanese on the JA page)
Prices and hours change. Check official sources before visiting.
More in this area
Unzen Kojigoku Onsen-kan
A historic cure-bath in the hills a short way from Unzen's main street, said to have hosted Siebold and Yoshida Shōin. An octagonal wooden bathhouse with milky sulfur water cooled from a 90°C source. No open-air bath, but Unzen's finest water.
Unzen Yokayu
A day-bath with a simple lodging near the entrance to Unzen Jigoku. Every tub is free-flowing milky sulfur water — indoor, open-air and four private outdoor baths. ¥500, 9 am to 9 pm; an easy stop before or after touring the 'hells'.
Obama Onsen Wakihama Public Bath (Otasshan-yu)
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.
