Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Iso no Yu Onsen, in Goshogawara, Aomori Prefecture, heats sodium-chloride water to 41°C. An indoor bath, an outdoor rotenburo and a sauna are available.
Insider tip — Goshogawara is famous for its Tachineputa Festival floats towering 23 meters high. The local onsen culture is equally vibrant — this sento is a favorite gathering spot for Tsugaru locals.