Tsuchitaru, Yuzawa, Niigata
Tsuchitaru Onsen Iwa-no-Yu
A stone-bath public onsen that works well after outdoor activities around Tsuchitaru and Daigenta. It is a cooler-classified spring, but the current sources do not specify how the individual baths are heated or treated.
Check before bathing
- Opening hours
- 10:00–21:00; last admission 20:30. Closed Wednesdays. Adult ¥850. Parking for 32 cars. The stone bath holds about 15 people.
Spring & water temperature
- Spring-source temperature
- Not published; the low-temperature classification is the only current source-side detail.
- Bathing temperature
- Not published.
- Spring source
- An individual source name was not published on the current official pages.
- Spring classification
- Alkaline simple spring; low-tonicity and low-temperature.
- pH
- Not published.
- Flow rate
- Not published.
- Water handling
- Current primary pages do not publish water addition, heating, circulation or disinfection details by pool. The low-temperature classification is not used to infer a heating method.
Bathing indications
The outdoor-bath listing gives general indications including neuralgia, limited mobility, frozen shoulder and joint pain. These are not a guarantee of medical benefit.
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.
