Uwa, Seiyo, Ehime Prefecture
Yutopia Uwa Yunosato Onsen
A natural cold-spring bath heated by a wood-pellet boiler, with a dry sauna and cold bath. It is a rural stop that needs a bus or car connection from JR Unomachi Station.
Check before bathing
- Opening hours
- 10:00–20:00; last admission 19:30. Closed on the fourth Tuesday of each month. Since April 1, 2025, adult admission is ¥600; seniors and guests with disabilities ¥500; children aged 5 and older ¥350. The bath has a dry sauna and cold bath, with a view toward Asagiri Lake.
- Tattoo policy
- The current profile does not confirm a tattoo policy; ask the facility before visiting.
Spring & water temperature
- Spring-source temperature
- Not published.
- Bathing temperature
- Not published.
- Spring source
- Yunosato Onsen; the facility confirms a cold spring from about 600 metres underground.
- Spring classification
- Low-tonicity alkaline cold mineral spring.
- pH
- Not published.
- Flow rate
- Not published.
- Water handling
- The cold spring is heated by a wood-pellet boiler for the public baths. Circulation, disinfection and pool-by-pool treatment details are not published.
Do not substitute spring figures from other facilities in Seiyo City. Travel from JR Unomachi Station requires checking bus connections or arranging a car.
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.
