Karuizawa Sengataki Onsen (Yokuso Shisetsu)
Karuizawa, Nagano, Japan
- Location
- Karuizawa, Nagano, Japan
- Temperature
- 68 °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
Karuizawa Sengataki Onsen, in Nagano Prefecture, stands out for its sulfurous thermal water heated to 68°C (154°F). An indoor bath, an outdoor rotenburo and a sauna round out this mountain bathhouse.
Insider tip — Karuizawa is Japan's most prestigious mountain resort, chosen by the imperial family and Tokyo elite since the Meiji era. Sengataki ('thousand waterfalls') Onsen is a welfare facility tapping the volcanic hot spring waters of the Asama volcanic zone. Sulfurous and hot — a genuine geothermal spring amid this upscale forest resort.
Nearby
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 68 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features sulfurous & thermal water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année.