Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Yamanote Onsen is located in Hakodate, on the island of Hokkaido. Its sodium-chloride water reaches 42°C and is split between an indoor bath and an outdoor rotenburo, with a sauna rounding out the facility.
Insider tip — Yamanote Onsen occupies a quiet hillside district of Hakodate between the port and Mount Hakodate. Its sodium-chloride water drawn from coastal strata is warming in winter and a favourite among local fishermen returning from the Tsugaru Strait.