Yamaguchi district, Shima Onsen, Nakanojo, Gunma Prefecture
Kami-no-Yu Public Bath
Its standout feature is the tourism association's confirmation that the pools are source-flowing. Come for a straightforward communal bath, not for scenery or extensive facilities.
Check before bathing
- Opening hours
- 09:00–15:00, open daily according to the current listing.
- Tattoo policy
- The current first-party information does not confirm a tattoo policy. Ask before visiting.
Spring & water temperature
- Spring-source temperature
- Not published.
- Bathing temperature
- Not published.
- Spring source
- The individual spring source is not published in current official information.
- Spring classification
- Not published for this bathhouse. Shima Onsen's regional spring classification is not substituted for facility-specific data.
- pH
- Not published.
- Flow rate
- Not published.
- Water handling
- The Shima Onsen Association says that spring water flows through both pools in each of the men's and women's baths. Current pages do not publish separate conditions for water addition, heating or disinfection.
Bathing indications
Current official information does not publish bathing indications for this individual bath.
The association confirms source flow in the pools; separate water-treatment conditions are not published.
The three communal baths are free. Bring your own towel and soap. The bath is a small indoor pool beside the road and can be easy to miss.
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.
