Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
BicarbonatesSodiumCalcium
Kitahiroshima Onsen is a serene hot spring facility located in Kitahiroshima town, deep in the mountainous interior of Hiroshima Prefecture. The bicarbonate thermal waters are celebrated for their softening effect on the skin and their ability to soothe joint pain, earning the onsen a reputation as beautifying waters among regular bathers. Set amid verdant forested valleys characteristic of inland Chugoku, the spa invites guests to unwind in a tranquil natural setting far from urban centers.
Insider tip — Despite its Hiroshima-inspired name, this Kitahiroshima is located on Hokkaido, south of Sapporo, where agricultural plains meet the foothills of the Yubari Mountains. The bicarbonate spring here emerges from Cretaceous sedimentary rock and is favoured by athletes training at nearby sports facilities for its muscle-recovery properties. Winter visits are exceptional when the surrounding fields are blanketed in deep powder snow and the outdoor rotenburo steams dramatically into the cold Hokkaido air.