Kamiterayu area, Nozawa Onsen, Nozawaonsen Village, Nagano Prefecture
Kamiterayu Public Bath
A small, historic bath with a simple layout and a hot spring drawn from the Asagama and Kumanotearai-yu sources. The men's entrance has a kettle for boiling eggs.
Check before bathing
- Opening hours
- 05:00–23:00 from April through November; 06:00–23:00 from December through March. There is no fixed admission charge; visitors are asked for a voluntary contribution.
- Tattoo policy
- The current tourism-association pages reviewed do not confirm a tattoo rule; check locally if you need a definite answer.
Spring & water temperature
- Spring-source temperature
- About 90°C.
- Bathing temperature
- Not published; the official description calls this a high-temperature bath.
- Spring source
- Asagama and Kumanotearai-yu sources.
- Spring classification
- Sulfur-bearing sodium-calcium sulfate spring.
- pH
- Not published.
- Flow rate
- Not published.
- Water handling
- The tourism association describes all 13 Nozawa public baths as 100% source-flowing. Fixed pool temperatures and source-by-source treatment details are not published.
Bathing indications
The association lists general bathing indications including neuralgia, rheumatism, reduced gastrointestinal function, diabetes and dermatitis. These are not treatment guarantees.
The approximately 90°C figure is the source temperature, not the pool setting.
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.
