Atsumi Onsen, Tsuruoka, Yamagata Prefecture
Shimonoyu Public Bath
A no-frills local bath for a quick soak in the heart of Atsumi Onsen. It has few visitor amenities, so bring your own towel and soap.
Check before bathing
- Opening hours
- The current bath page lists 06:00–11:00 and 14:00–22:00, with cleaning from 11:00 to 14:00. A March 2026 leaflet lists closing at 23:00; confirm locally if going after 22:00. Admission is ¥300.
- Access
- Bring a towel and soap; visitor facilities are limited.
Spring & water temperature
- Spring-source temperature
- Not published for this bath; the area's representative 68°C figure is not substituted.
- Bathing temperature
- No fixed temperature is published.
- Spring source
- Atsumi Onsen's shared spring; the specific well is not named.
- Spring classification
- The area is classified as a sodium-calcium chloride-sulfate spring. No current individual analysis for this bath is confirmed.
- pH
- Not published.
- Flow rate
- Not published for this bath.
- Water handling
- The onsen association describes the shared bath water as source-flowing. Pool-specific treatment details are not published.
Bathing indications
No treatment claim is made.
The current page and a March 2026 leaflet differ on closing time (22:00 versus 23:00). Check locally if arriving late.
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.
