Zao Onsen, Yamagata
Kawarayu Public Bath
The distinctive choice among Zao's public baths: spring water wells up through the bottom and sides of the bath. Facilities are especially sparse, with no indoor toilet, showers, taps or lockers; this is a different place from Sunokono-yu Kawaraya.
Check before bathing
- Opening hours
- 06:00–22:00 year-round. Adult ¥300; child ¥100. Payment is collected in an unmanned box. No dedicated parking.
Spring & water temperature
- Spring-source temperature
- 42.4°C in the published spring notice.
- Bathing temperature
- Not published; the water temperature can vary.
- Spring source
- Kawarayu Public Bath spring.
- Spring classification
- Acidic sulfur-bearing aluminum sulfate-chloride spring; low-tonicity and high-temperature.
- pH
- Not published for this bathhouse.
- Flow rate
- Not published.
- Water handling
- The bath is built over a natural spring pool, with water flowing in through the floor and sides. The published notice describes temperature adjustment with well water, no heating, full-discharge flow and no disinfectant. The facility is separate from Sunokono-yu Kawaraya.
Bathing indications
The area authority publishes general bathing indications for Zao Onsen; this is not a promise of medical benefit.
No indoor toilet, showers, taps or lockable lockers; soap is prohibited.
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.
