Relaxing — deep, immediate muscle release.
Rich in active gases or metals — a strong mineral character.
Soft water — natural, classic buoyancy.
Shibu Onsen, in Yamanouchi, Nagano Prefecture, is a traditional hot-spring village known for its nine public bathhouses scattered among ryokan inns, visited with a stamp-collecting tour booklet. The sulfurous water reaches 45°C. Nearby are the snow monkeys of Jigokudani Park and the Shiga Kogen ski area.