Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
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Dense, salty water — you float without effort.
SodiumChloruresBrome
The Fureai Koryu Center houses Kyogoku Onsen, in Kyogoku on Hokkaido island. Sodium-chloride water rises at 41°C, feeding an indoor bath and an outdoor rotenburo bath, with an on-site sauna.
Insider tip — In Kyogoku, a Hokkaido town famous for the Fukidashi Park where impossibly clear spring water gushes from the base of Mount Yotei at 80,000 tons per day, this community onsen completes the water-obsessed character of the area; the mineral spring bathing pairs beautifully with drinking the purest natural water in Japan just minutes away.