Gensen Kakenagashi Onsen; Tsumayu
Saito, Miyazaki, Japan
- Location
- Saito, Miyazaki, Japan
- Water type
- thermal, sodium chloride
- Temperature
- 39 °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
Gensen Kakenagashi Onsen; Tsumayu is located in Saito, Miyazaki Prefecture. Its sodium-chloride thermal water, at 39°C, feeds the pools in a continuous-flow circuit. Indoor bath, outdoor bath (rotenburo) and sauna round out the offering.
Insider tip — 'Tsumayu' (妻湯 — wife's bath) at Gensen Kakenagashi Onsen in Saito, Miyazaki. 'Gensen kakenagashi' (源泉かけ流し) is the gold standard of Japanese onsen — undiluted, unheated, flowing directly from the source. Saito is famous for the Saitobaru burial mound complex, one of Japan's largest concentrations of kofun. This uncompromising flow-direct spring is the finest expression of Miyazaki's geothermal heritage.
Nearby
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 39 °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.