Choei; Kusajio Onsen
Hayakawa, Yamanashi, Japan
- Location
- Hayakawa, Yamanashi, Japan
- Water type
- sulfurous
- Temperature
- 42 °C
- pH
- 6.5
Water profile
Thermicity
Sedative
LowHigh
Relaxing — deep, immediate muscle release.
Mineralisation
Bio-active
LowHigh
Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
SoufreSulfuresSulfates
Choei, also known as Kusajio Onsen, is located in Hayakawa, in the mountains of Yamanashi. Its sulfurous water, pH 6.5, heats to 42°C and feeds an indoor bath, an outdoor rotenburo and a sauna.
Insider tip — Hayakawa-cho is the most remote and least populated municipality in Japan, a tiny mountain community in the deepest Southern Alps where the Hayakawa River carved a gorge over centuries. Kusajio Onsen is one of the very few services in this extraordinary wilderness, a rare hot spring that rewards the challenging mountain road with authentic solitude.
Nearby
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 42 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features sulfurous water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année.