Tottori · Hawai & Tōgō Onsen
Hawai Onsen Sennentei
はわい温泉 千年亭
A ryokan built out over Lake Tōgō, known as the 'inn on the lake': lobby and baths are surrounded by water on three sides, and the open-air Kōsuke-yu sits almost level with the surface. Free-flowing simple spring water. Day bathing runs on an irregular basis, roughly 11:00–14:00, ¥1,000 cash only — phone the same day to confirm. Private open-air baths are ¥1,650 per 45 minutes, booked by phone from 9:00 that morning. 18 minutes by bus from Kurayoshi Station to the Hawai Onsen stop. No restaurant inside, so eat in the onsen town or at the Enchōen roadside station.
- Price (adult)
- ¥1,000
- Hours
- 11:00–14:00 (leave by 15:00; varies by day — confirm in advance)
- Closed
- Irregular (day bathing suspended when busy or with groups)
- Access
- 18 min by Nihon Kōtsū bus from JR Kurayoshi Station to Hawai Onsen; 5 min by car from Hawai IC
- Water type
- Simple spring
- Tattoos
- Ask ahead
- Admission
- Day bathing adults ¥1,000, elementary and under ¥500 (cash only, paid on entry). Bring a towel or pay (face towels sold, bath towels rented). Shampoo and body soap provided. Private lake-side rotenburo 'Kinrin' (cypress) and 'Ginrin' (ceramic) ¥1,650 per party per 45 min (bath fee extra, reservation required, 6:00–23:00, guests have priority). Meal plans and lunch-plus-bath plans by reservation. Lake view from the lobby
- Baths
- A long-established inn (about 50 rooms) on 'Dejima', a tiny island reached by a red arched bridge from the west shore of Lake Togo. Two outdoor baths pressed against the lake — the rock 'Ganso Kosuke-yu', named for the founder, and 'Sennen-no-yu' — alternate between men and women; from these 'lake-level' rotenburo your eyes sit level with the water, taking in Lake Togo, the hills opposite, morning mist, sunset and the lights on the lake at night. Indoor main bath; no sauna. Two private rotenburo (cypress and ceramic). A lobby lounge and dining room with fine views. Hawai Onsen rises from the lake bed, giving the unusual sight of inns standing over the water
- Spring water
- Sodium-calcium chloride-sulphate spring (hypotonic, neutral, high-temperature), pH 7.5, about 50–60°C at the Hawai source group; the inn's own source flows freely (cooled with added water). Colourless, almost odourless with a hint of salt, soft and highly heat-retaining — a 'warming bath'. Indicated for neuralgia, rheumatism, joint pain, poor circulation, skin disease, cuts and fatigue. Hawai (羽合) Onsen was opened in the late Edo period when hot water was found in the lake bed; because the name sounds like 'Hawaii' the town is twinned with Hawaii County and plays up an 'aloha' theme
- Access & parking
- 18 min on the Nihon Kotsu bus (bound for Ishiwaki/Obama via Hawai Onsen) from JR Kurayoshi Station on the San-in Line to 'Hawai Onsen', right outside; pick-up from Kurayoshi by reservation. By car 5 min from Hawai IC on the San-in Expressway, 50 min from Tottori city, 1 h from Yonago. Free parking for 60 in front of the inn. Yonago Airport 1 h, Tottori Airport 50 min. 10 min by car to Togo Onsen across the lake and the Chinese garden 'Encho-en' (roadside station)
- Phone
- 0858-35-3731
- Official site
- sennentei.net ↗
- Open in Google Maps
- Google Maps ↗
Essentials
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Why go
- Open-air bath surrounded by Lake Tōgō
- Free-flowing spring, ¥1,000
- Irregular day use — phone first
A venerable inn afloat on the lake, with a rotenburo at water level
Hawai Onsen Sennentei is a venerable hot-spring inn on 'Dejima', a tiny island reached by a red arched bridge from the west shore of Lake Togo, a brackish lake at the centre of the San-in region in Yurihama, Tottori. Hawai Onsen opened in the late Edo period when hot water was discovered in the lake bed; it is known for the rare sight of inns standing over the water and for a name pronounced like 'Hawaii' — a whimsical resort twinned with the State of Hawaii. Sennentei's pride is its pair of rotenburo built hard against the lake, 'Ganso Kosuke-yu' and 'Sennen-no-yu': settle into the water and your eyes come level with the surface, as if you were floating on the lake itself. Mist drifts across in the morning, the sun sets behind the hills opposite in the evening, and at night the inns' lights ripple on the water. The sodium-calcium chloride-sulphate water flows free from the inn's own source, soft and long-warming. Day bathing is a short window from 11:00 to 14:00 (leave by 15:00) that varies by day, so phoning ahead is essential; adults ¥1,000. Lying between San-in's highlights — the Tottori sand dunes, Misasa Onsen and Kurayoshi's white-walled storehouses — it is a fine place to pause on a drive for a soak with a lake view.
Kosuke-yu and Sennen-no-yu: bathing as if afloat on the lake
Cross the red bridge, park in front of the inn and enter through the pure Japanese-style entrance, paying ¥1,000 in cash at the front desk (no cards). The lake spreads beyond the lobby lounge's big windows; follow the corridor to the gender-separated indoor baths and their outdoor rotenburo. The two outdoor baths, 'Ganso Kosuke-yu' (a rock bath named for founder Kosuke) and 'Sennen-no-yu', swap between men and women daily, so which you get is luck, but both face the lake. Sink low in the water and the lake surface lies just beyond the tub's rim, level with your eyes; waterbirds pass before you and when the wind blows the ripples on the lake seem to continue into the bath. The water is clear and faintly salty, soft at 41–42°C, and thanks to its chloride and sulphate content the warmth lingers long after. Since day bathing falls at midday, 11:00–14:00, sunset and morning mist are the privilege of overnight guests, but the lake and the green hills opposite on a clear afternoon are beautiful enough, and in winter the snow runs white down to the water. There is no sauna and the baths are simple in the manner of an old inn but clean; the private lakeside rotenburo 'Kinrin' (cypress) and 'Ginrin' (ceramic) can be reserved for ¥1,650 per 45 minutes, giving couples and families the lake to themselves (guests have priority). Day bathing is sometimes suspended at short notice for groups or cleaning, so phone before you visit to confirm the day's hours.
Mind the day-bathing window; a San-in drive
Day bathing is normally received 11:00–14:00 (leave by 15:00), but the window shifts by day and is refused when groups or crowds fill the inn, so always phone (0858-35-3731) to confirm. Adults ¥1,000, elementary and under ¥500, cash only; bringing a towel is advised. Access is 18 minutes by bus from JR Kurayoshi or 5 minutes from Hawai IC on the San-in Expressway, with 60 free parking spaces; overnight guests can book a Kurayoshi pick-up. Hawai Onsen sits midway between the Tottori sand dunes (50 min by car) and Yonago/Sakaiminato (1 h), making it the ideal lunch-and-bath stop on a drive across San-in: the dunes and Sand Museum in the morning, a bath at Sennentei (lunch-plus-bath plans can be booked), the Chinese garden Encho-en on the east shore (roadside station, 10 min) and a loop of Lake Togo, a stroll through Kurayoshi's white-walled storehouse district (20 min), then a night at radium-rich Misasa Onsen (30 min) or on to Yonago. Stay at Hawai itself and the rotenburo gives you the sunset and morning mist — the true worth of a 'lake onsen' shows overnight — with Lake Togo's shijimi clam dishes and winter snow crab (November–March) to enjoy at table. In summer the lake fireworks (late July, Hawai Onsen fireworks festival) make a special night visible from the bath. Expect not a sauna or big facilities but a quiet bath that feels afloat on the lake.
Before you go
- No official tattoo policy is published — ask at reception.
- Ryokan day-use hours are limited and may be suspended in peak season — phone the same morning.
- Last entry is 30–60 minutes before closing.
Features
Mood & scenery
Rules & private
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.
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