Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
In Hidakagawa, Wakayama Prefecture, Kawabe Onsen (Kisaku no Yu) offers sodium-chloride water heated to 41°C. The facility combines an indoor bath, an outdoor rotenburo and a sauna in a quiet rural setting.
Insider tip — Kisaku no Yu, the carefree spring, serves the Hidaka River community of Hidakagawa-cho in the Kii Mountain valleys where the river runs blue-green through gorges shaded by ancient cedar forests. Traditional Japanese lacquerware production (Kishu-nuri) has been practiced in these Wakayama mountain valleys for centuries, using Hidaka River water and the forest urushi lacquer resin harvested from groves planted along the mountain ridges.