Yamaguchi · Nagato-Yumoto Onsen
Nagato-Yumoto Onsen Otanisanso
長門湯本温泉 大谷山荘
A leading inn of Nagato-Yumoto Onsen, standing on the bank of the Otozure river. It has two great baths: Seseragi-no-yu, with a rock open-air bath and a hinoki one, and Komorebi-no-yu, with a half-open bath facing the river, both fed by an alkaline simple spring. Day bathing is 2,500 yen for adults and 1,250 yen for elementary pupils, accepted 12:00 to 21:30 on weekdays and 12:00 to 15:00 plus 18:00 to 21:30 on weekends, holidays and special days. Day visitors use Seseragi-no-yu on the first floor if men and Komorebi-no-yu on the second if women, and bath and face towels are lent free.
- Price (adult)
- ¥2,500
- Hours
- Weekdays 12:00–21:30; weekends, holidays and special days 12:00–15:00 and 18:00–21:30
- Closed
- Irregular closing (closed on closure days; opens at 15:00 the next day)
- Access
- About 15 minutes on foot from Nagato-Yumoto Station on the JR line; about 40 minutes from Mine IC on the Chugoku Expressway via Routes 435 and 316, with free parking for 90.
- Water type
- Alkaline simple
- Tattoos
- Ask ahead
- Admission
- Day bathing costs 2,500 yen for adults and 1,250 yen for elementary pupils, and is free for children below elementary age. A bath towel and a face towel are lent without charge, so there is no need to bring your own. It closes on closure days and opens at 15:00 on the day after one.
- Spring water
- An alkaline simple spring that feels soft on the skin. The baths are kept at temperature with heating and circulation. The spa street runs along the Otozure river, so you walk to the bath to the sound of water.
- Baths
- There are two great baths. Seseragi-no-yu on the first floor has a rock open-air bath and a hinoki one, while Komorebi-no-yu on the second has a half-open bath facing the river. They alternate between men and women for staying guests, but day visitors use the first floor if men and the second if women.
- Access & parking
- About 15 minutes on foot from Nagato-Yumoto Station on the JR line. By car it is roughly 40 minutes from Mine IC on the Chugoku Expressway via Routes 435 and 316, with free parking for 90.
- Day bathing
- Reception is continuous from 12:00 to 21:30 on weekdays, and split into 12:00 to 15:00 and 18:00 to 21:30 on weekends, holidays and special days. The changing room has lockers with keys, a dryer and toiletries. Evenings can overlap with staying guests, so allow extra time.
- Phone
- 0837-25-3300
- Official site
- otanisanso.co.jp ↗
- Open in Google Maps
- Google Maps ↗
Essentials
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Why go
- Two great baths facing the river
- Towels lent free to day visitors
- Soft water from an alkaline simple spring
A spa street along the river
Nagato-Yumoto Onsen lines both banks of the Otozure river with inns and shops, joined by riverside paths and bridges. The inn stands facing the water, which makes it easy to walk the river before and after a bath. It is within walking distance of the station, so it works well without a car.
The two great baths compared
Seseragi-no-yu on the first floor is the larger bathing hall, with a rock open-air bath and a hinoki one, while Komorebi-no-yu on the second centres on a half-open bath facing the river. Day visitors use the first floor if men and the second if women, so both cannot be seen on one visit. It helps to know which one you will get.
How day bathing works
Day bathing is 2,500 yen for adults and 1,250 yen for elementary pupils. It runs 12:00 to 21:30 on weekdays, and in two blocks, 12:00 to 15:00 and 18:00 to 21:30, on weekends, holidays and special days, so check the time before going. Towels are lent free and the changing room has lockers and a dryer. Hours change on closure days and the day after, so call if you want to be sure.
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
Sauna & wellness
Mood & scenery
Who with
Convenience
Amenities
✔ Verified operating: 2026-10 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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