Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
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Soft water — natural, classic buoyancy.
SoufreSulfuresSulfates
In a traditional Japanese onsen, guests follow a serene bathing ritual. Before entering the hot spring bath, visitors typically remove their clothing and wash themselves thoroughly in a designated area. A sense of modesty and respect is observed, with guests often using washcloths and soap to clean themselves. This cleansing process is a precursor to soaking in the warm waters, allowing individuals to unwind and disconnect from the world. The bathing tradition emphasizes relaxation, tranquility, and communal respect.
Insider tip — Kin-chan, an affectionate Japanese pet name, gives this Nasu Highlands spring its warmly informal character. Nasu is beloved as the summer retreat of the imperial family, and the surrounding plateau offers superb hiking to volcanic crater lakes and wildflower meadows.