Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
SoufreSulfuresSulfates
Aso Otohime Onsen; Yura Yura is located in Aso, Kumamoto Prefecture, near the well-known volcano. The sulfurous water surfaces at 44°C. An indoor bath, an outdoor rotenburo and a sauna are offered.
Insider tip — Inside the world's largest active volcanic caldera, Otohime Onsen channels the raw geothermal power of Mount Aso into bubbling sulfurous pools; Yura Yura (gently swaying) describes the dreamy, meditative quality of bathing with active volcano fumes visible on the crater rim — one of Japan's most dramatically situated hot spring experiences.