Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Fujimi Onsen (Fureaikan), in Maebashi, Gunma Prefecture, delivers sodium-chloride thermal water at around 39°C (102°F), with an indoor bath, an outdoor rotenburo and a sauna.
Insider tip — 'Fujimi' (Mt. Fuji view) Onsen at Fureaikan is a community onsen facility in Maebashi, the capital of Gunma Prefecture. Gunma is one of Japan's great onsen prefectures, and even its capital city has multiple local hot springs. The 'fureaikan' community hall format makes this a gathering place for local residents.