Kawafuru Onsen, Minakami, Gunma Prefecture
Kawafuru Onsen Hamaya Ryokan Day Use
For travellers who would rather spend time in a quiet mountain inn's 37–38°C long-soak bath than seek a station-side spa or extra facilities. Day-use access is conditional, so call ahead before making the trip.
Check before bathing
- Opening hours
- Day-use reception is 10:30–14:00; guests must leave by 15:00. Day visits may be suspended when the inn is busy with overnight guests, on holiday periods or during cleaning. The tourism association lists a shorter reception window, so confirm directly with the inn.
- Tattoo policy
- The inn's current official pages reviewed do not confirm a tattoo policy. Check before visiting.
Spring & water temperature
- Spring-source temperature
- Not published in the current material summarized here.
- Bathing temperature
- 37–38°C for the long-soak bath, as listed by the inn.
- Spring source
- Hamaya Ryokan's own spring.
- Spring classification
- Calcium-sodium sulfate spring; low-salinity and weakly alkaline.
- pH
- Not published.
- Flow rate
- Not published in the current material summarized here.
- Water handling
- The inn says spring water is piped directly to each bath and flows from source to pool without being exposed to air. The long-soak pool is kept at 37–38°C by adjusting the flow. Current official text pages do not provide a complete pool-by-pool table for water addition, heating, circulation and disinfection, so no further treatment is inferred.
- Analysis date
- 2015-08-24
Bathing indications
No specific medical effect is claimed here.
The inn confirms direct source delivery without exposure to air and adjusts flow to maintain the long-soak bath at 37–38°C. Other treatment details are not fully published.
Day admission is ¥1,000 for adults and ¥500 for children. Call first, especially on weekends, before holidays, during New Year, Obon or busy periods, and on cleaning days. 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.
