Senri Expo Park, Suita, Osaka Prefecture
Natural Hot Spring Banpaku Oyuba
A practical choice when pairing a large open-air bath and natural spring with a visit to Expo Park or EXPOCITY. It suits visitors who value the outdoor bathing area and time inside the facility over an early opening or the shortest station walk.
Check before bathing
- Opening hours
- 10:00–01:00; last admission 24:00.
Spring & water temperature
- Spring-source temperature
- 25.3°C; this is the spring temperature, not the bath temperature.
- Bathing temperature
- Not published.
- Spring source
- Banpaku Onsen.
- Spring classification
- Sodium chloride spring; neutral, low-salinity and cool spring.
- pH
- 6.5.
- Flow rate
- 100 L/min.
- Water handling
- Natural spring water is drawn from about 700 m underground. The facility describes the open-air Daichi-no-Yu as a bath with 100% natural hot-spring water. The concentrated carbonated bath, rotating bath and indoor baths are separate features; their supply conditions should not be assumed to match.
Bathing indications
The facility lists general sodium chloride spring indications including neuralgia, joint and muscle pain, cuts, burns and chronic skin conditions. This is not a medical treatment guarantee.
After the 1 May 2026 price revision, adult admission is ¥950 on weekdays and ¥1,050 on weekends and public holidays. The heated stone area costs extra and is available only to bath customers.
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.
