Koakazawa Onsen; Rakuyokan
Sakae, Nagano, Japan
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- Location
- Sakae, Nagano, Japan
- Water type
- sulfurous
- Temperature
- 41 °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
Koakazawa Onsen, known as Rakuyokan, is set in Sakae, Nagano prefecture. Sulfurous water, with a pH of 6.5, reaches 41°C in an indoor bath and an outdoor rotenburo, with a sauna available.
Insider tip — Rakuyokan, the falling-leaf inn, sits in Sakae-mura, a tiny mountain village on the Nagano-Niigata border that holds the Japanese record for snowfall. Arriving in deep winter, when snow reaches rooftop level, transforms this sulfurous spring into one of Japan most dramatic snow-country experiences.
Nearby
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 41 °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.