Mitsumata, Yuzawa, Niigata
Mitsumata Onsen Kaido-no-Yu
A public bath beside Roadside Station Mitsumata, with an indoor bath and a rock-built outdoor bath. The early opening during Fuji Rock 2026 was a special schedule, not its regular hours.
Check before bathing
- Opening hours
- 10:00–21:00; last admission 20:30. Closed Tuesdays. Adult ¥850. Parking for 60 cars. The 08:00 opening during Fuji Rock 2026 was special event hours only.
Spring & water temperature
- Spring-source temperature
- Not published.
- 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 high-temperature.
- pH
- Not published.
- Flow rate
- Not published.
- Water handling
- Natural spring water is confirmed in the indoor and outdoor baths. The current primary sources do not provide pool-by-pool details for water addition, heating, circulation or disinfection; the whole facility is not described here as source-flowing.
Bathing indications
The outdoor-bath page lists general indications including neuralgia, muscle pain, hemorrhoids and sensitivity to cold. These are not a guarantee of medical benefit.
The rock outdoor bath holds about 10 people and the indoor bath about 20. Fuji Rock's 08:00 opening was limited to the event period, not a regular schedule.
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.
