Kashikiri Yubune; Yamabushi Tennen Onsen
Yamaga, Kumamoto, Japan
- Location
- Yamaga, Kumamoto, Japan
- Water type
- sodium chloride
- Temperature
- 41 °C
- pH
- 7.3
Water profile
Thermicity
Sedative
LowHigh
Relaxing — deep, immediate muscle release.
Mineralisation
Restorative
LowHigh
Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
The Kashikiri Yubune of Yamabushi Tennen Onsen, in Yamaga, Kumamoto, offers private baths fed by sodium-chloride water at 41°C. The site also has a shared indoor bath, an outdoor rotenburo pool and a sauna.
Insider tip — Yamabushi Tennen Onsen offers kashikiri private rental baths where the entire volcanic spring bath is reserved exclusively for one party — the intimate format that Kurokawa Onsen nearby helped popularize across Kumamoto Prefecture. The yamabushi mountain ascetic dedication invokes the Shugendo tradition of mountain bathing that underpins the Japanese understanding of hot springs as places of spiritual and physical renewal.
Nearby
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 41 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features sodium chloride water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année.