Oku-daira Onsen, Minakami, Gunma
Oku-daira Onsen Yushinkan
Yushinkan is a good-value long-stay bath near Takumi-no-Sato if you want several pools, sauna, places to rest and food on site. The cooler source-flowing bath is a separate option, not the temperature of the whole facility.
Check before bathing
- Opening hours
- After the July 2026 price revision, general admission is ¥700 for three hours, ¥1,020 for five hours or ¥1,450 for a full day. The hot-spring area is open 10:00–20:00 and usually closed Thursdays; public holidays and special schedules may differ.
- Tattoo policy
- The current official use and bath pages checked do not state a tattoo policy. Ask before visiting.
Spring & water temperature
- Spring-source temperature
- Not published
- Bathing temperature
- About 30°C in the separate source-flowing bath; other bath temperatures are not published
- Spring source
- The spring used at Oku-daira Onsen; no individual source name is published in current official text
- Spring classification
- Alkaline simple spring
- pH
- Not published
- Flow rate
- Not published
- Water handling
- The facility describes its overall supply as 100% spring water using circulation and heating, with some free-flowing pools. A separate source-flowing bath is described as 100% free-flowing, without heating or circulation, at about 30°C. Those conditions do not apply to every pool.
Bathing indications
The official page lists general bathing indications including bruises, neuralgia, joint pain, fatigue and general health. These are not treatment guarantees.
The three-, five-hour and full-day rates are ¥700, ¥1,020 and ¥1,450 respectively. The hot-spring area is usually closed Thursdays. Tattoo rules are unconfirmed.
How to read a bath profile
Spring-source temperature and actual bathing temperature are kept separate. Each score is shown independently for comparison rather than collapsed into one overall score.
