Kuramaecho, Kita Ward, Sakai, Osaka Prefecture
Kuramae Onsen Sarasa-no-Yu
A strong south-Osaka pick if you want a documented natural spring, a designated source-flowing bath, sauna and stone spa within walking distance of a station. Allow for the trip if you are staying in northern Osaka.
Check before bathing
- Opening hours
- 09:00–02:00; last admission 01:00. Adults ¥900 on weekdays and ¥1,000 on weekends and public holidays; children aged 3 and over ¥400/¥450; under 3 free. Stone spa costs ¥600 on weekdays and ¥700 on weekends and holidays, in addition to admission. Towel set rental ¥300.
- Tattoo policy
- Tattoos, tattoo stickers and body paint are not allowed.
Spring & water temperature
- Spring-source temperature
- 52.2°C at the source.
- Bathing temperature
- Not published as a fixed value for each pool.
- Spring source
- The facility's spring from the lowest layer of the Osaka Group, about 1,350 m underground.
- Spring classification
- Sodium chloride spring; low-salinity, neutral and high-temperature.
- pH
- Not included in the material summarized here.
- Flow rate
- Not included in the material summarized here.
- Water handling
- The facility identifies it as a therapeutic hot spring and confirms source flow for a specified core bath. The current main pages do not provide complete treatment details for every pool.
Guests may re-enter while remaining inside the facility; once they leave, they must pay admission again. Men's and women's bathing areas change by weekday, not by month.
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.
