Central Beppu, Oita
Kaimonji Onsen
A compact municipal bath about five minutes on foot from Beppu Station, with separate hotter and cooler pools. It closes for cleaning from 14:00 to 15:00, when visitors cannot enter the building.
Check before bathing
- Opening hours
- 06:30–22:30. Closed to entry during cleaning from 14:00–15:00. Adult ¥250; child ¥100. About a five-minute walk from Beppu Station, beside Kaimonji Park.
- Tattoo policy
- Beppu City's current tourism page explicitly says tattoos are accepted.
Spring & water temperature
- Spring-source temperature
- 54.7°C in the city analysis sampled January 8, 2020.
- Bathing temperature
- Not published. The source figure is not the fixed temperature of either pool.
- Spring source
- Kaimonji Onsen spring, according to Beppu City's current analysis.
- Spring classification
- Sodium bicarbonate spring.
- pH
- 7.7, on site and in the laboratory.
- Flow rate
- Not measured in the analysis; actual flow rate is not published.
- Water handling
- Beppu City describes the bath as source-flowing. The facility has separate hotter and cooler pools; the current page does not publish a fixed temperature for either pool.
Visitors who prefer cooler water can choose the designated cooler pool, but its temperature is not published. Entry is not allowed during the 14:00–15:00 cleaning break.
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.
