Kaminokuni-cho Kokumin Onsen Hoyo Center; Yunotai Onsen
Kaminokuni, Hokkaido, Japan
- Location
- Kaminokuni, Hokkaido, Japan
- Water type
- sodium chloride, thermal
- 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
The Kaminokuni-cho Kokumin Onsen Hoyo Center, also known as Yunotai Onsen, is located in the village of Kaminokuni, at the southern tip of Hokkaido. Its sodium-chloride thermal water reaches around 40°C (pH 7.3), with an indoor bath, an outdoor rotenburo and a sauna.
Insider tip — Kaminokuni-cho (Upper Country) is one of Hokkaido's oldest Japanese settlements — the Matsumae domain established its earliest military presence here in the 15th century, making Kaminokuni a cradle of Japanese Hokkaido history. The Katsuyama Castle ruins reflect this frontier heritage. The Sea of Japan's cold currents pass the town's coast, making the Yunotai Onsen recuperation center a warming refuge on the Oshima Peninsula's austere but beautiful western shore. The Matsumae castle town — Hokkaido's only feudal castle — lies nearby.
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 sodium chloride & thermal water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année.