Japan onsens
HOSHINOYA Karuizawa
Hot springs in a Japanese mountain retreat
A nature-focused stay in Karuizawa with hot-spring bathing and riverside accommodation.
Karuizawa, Nagano · Japan
Visit websiteUSA · California
Wild Willy's (Crowley) Hot Spring
Boardwalk-served desert pool on Long Valley's volcanic tableland with huge Sierra views.
- Water temperature
- 40°C
- Type
- natural
- Cost to bathe
- Free
- Coordinates
- 37.6603, -118.7828
How to reach the water
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Blue Planet network · Goods & services
Swim, move & unwind
Swimwear, yoga wear, hiking footwear, meditation retreats and onsens in Japan.
Independent selections, not confirmed sponsors. Images are illustrative, not brand products or photographs of the named retreats. Swimwear is for pools where permitted; Japanese onsen bathing rules vary.