Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Standard buoyancy
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Soft water — natural, classic buoyancy.
BicarbonatesSodiumCalcium
Sunaharai Onsen Nanairo no Yu is located in Nakatsugawa, Gifu Prefecture, at the edge of the Japanese Alps. The bicarbonate water emerges at 40°C, feeding an indoor bath, an outdoor rotenburo and a sauna.
Insider tip — Sunaharai Onsen Nanairo no Yu, whose name means Seven Colors, is nestled in the Kiso Valley foothills of Gifu Prefecture where the Nakatsugawa highlands meet ancient post-town culture. The bicarbonate waters are mildly effervescent and celebrated for their softening effect on the skin. The seven baths of varying temperatures and mineral concentrations give the facility its colorful name. The surrounding cedar forests and historic Nakasendo trail make this an ideal stop on a cultural circuit.