Kajio Onsen
Kumamoto, Kumamoto, Japan
- Location
- Kumamoto, Kumamoto, Japan
- Water type
- thermal, sodium chloride
- Temperature
- 40 °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
Kajio Onsen is located in Kumamoto city, Kumamoto Prefecture, Japan. Its sodium-chloride thermal water surfaces at 40°C. An indoor bath, an outdoor rotenburo and a sauna are available.
Insider tip — 'Kajio Onsen' (舵尾温泉 — rudder-tail spring) in the northwestern outskirts of Kumamoto city, in the Kikuchi River watershed. Kumamoto city — devastated by the 2016 earthquakes that toppled the iconic Kumamoto Castle's towers — has rebuilt with remarkable speed. The castle's scaffolded reconstruction dominated the city skyline for years. The 'rudder' name suggests a spring that helps steer or guide — perhaps a community facility that provided stability during Kumamoto's recovery from the earthquakes.
Nearby
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 40 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features thermal & sodium chloride water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année.