Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Wakkanai Onsen Dom, in Wakkanai on the island of Hokkaido, at Japan's northern tip, offers sodium-chloride thermal water at 40°C, with an indoor bath, an outdoor rotenburo and a sauna.
Insider tip — Wakkanai is the northernmost city in Japan — Cape Soya, 30 km north, is Japan's most northern extremity. On clear days, Sakhalin (Russia) is visible just 42 km across the Soya Strait. 'Dom' (from Russian 'дом' = house) reflects Wakkanai's historical Russian cultural connection through Sakhalin. In January-February, Sea of Okhotsk drift ice appears offshore. Soaking here at the world's edge, with Arctic winds howling and Sakhalin silhouetted on the horizon, is an incomparably atmospheric Japanese onsen experience.