Tennen Kazoku Onsen Sozaki
Kikuchi, Kumamoto, Japan
Illustration photo — not a verified picture of this exact spot.
- Location
- Kikuchi, 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
Tennen Kazoku Onsen Sozaki is located in Kikuchi, Kumamoto Prefecture. The thermal, sodium-chloride water flows at 40°C, pH 7.3. The facility includes an indoor bath, an outdoor rotenburo bath and a sauna.
Insider tip — 'Tennen Kazoku Onsen Sozaki' in Kikuchi city — 'Sozaki' (曽崎) is a local place name in the Kikuchi area, where family baths draw from the natural geothermal system beneath the Aso volcanic plateau. Kikuchi city was historically the seat of the Kikuchi clan — powerful warriors of the Kamakura and Muromachi periods who resisted the Mongol invasions and supported the Southern Court against the Ashikaga shogunate. The natural family spring carries the groundwater of this historically proud Kumamoto highland landscape.
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.