Okuchi Onsen; Takakumaso
Isa, Kagoshima, Japan
Illustration photo — not a verified picture of this exact spot.
- Location
- Isa, Kagoshima, 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
Okuchi Onsen (Takakumaso) sits in Isa, Kagoshima Prefecture. Its sodium-chloride thermal water flows at 40°C. Guests can use an indoor bath, an outdoor rotenburo bath and a sauna.
Insider tip — 'Takakumaso' (高隈荘 — Takakuma mountain inn) at Okuchi Onsen in Isa city. Okuchi was a former city that merged to form Isa, known as a gateway to the Kumanosho highland forests. The Takakuma mountain range — also visible from Tarumizu across Kinkowan Bay — forms the eastern backdrop of this volcanic valley. The spring waters of Isa's Okuchi district carry the clear, clean character of highland volcanic springs fed by the Sendai River watershed.
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.