Kiso Onsen
Kiso Valley, Nagano Prefecture, Japan
- Location
- Kiso Valley, Nagano Prefecture, Japan
- Water type
- bicarbonate
- Temperature
- 43 °C
- pH
- 8.1
Water profile
Thermicity
Sedative
LowHigh
Relaxing — deep, immediate muscle release.
Mineralisation
Restorative
LowHigh
Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
Bicarbonate de sodium
Immerse yourself in the natural beauty of Kiso Valley, Nagano Prefecture, Japan. Kiso Onsen is a traditional hot spring resort nestled along the historic Nakasendo route, a major road connecting Tokyo to Kyoto. Soak in the bicarbonatated waters, rich in minerals and perfect for relaxation. Experience the authentic Japanese onsen culture.
Insider tip — Walk the Magome–Tsumago section (8 km), then finish with an onsen at Yabuhara — a perfect day.
Nearby
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 43 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features bicarbonate water.
What is the best season to visit?
The most favourable period for this spot is: Octobre|Novembre.