Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
FerBicarbonatesManganèse
Tennyo no Yu, in the Nba area of Hyogo Prefecture, draws on iron-rich water at 38°C. Visitors can use an indoor bath, an outdoor rotenburo and a sauna at this hillside bathhouse.
Insider tip — Togayama Onsen Tennyo no Yu rises in the hills of northern Hyogo near the Tottori border, offering iron-rich spring water tinted a warm amber by dissolved minerals. The legend of tennyo — celestial maidens — is woven into the local folklore, and the bath is regarded as restorative for tired muscles and skin. Cedar-clad bathing rooms open onto a small garden where seasonal wildflowers bloom in spring. The quietude of this rural setting makes it a welcome detour on drives between the Sanin coast and Kansai.