Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Kazoku Onsen, part of the Kenkomura complex, is located in Satsuma, Kagoshima Prefecture. Its sodium-chloride water reaches roughly 39°C, with an indoor bath, an open-air rotenburo bath and a sauna available on site.
Insider tip — 'Kenkomura' (健康村 — health village) at Kazoku Onsen in Satsuma-cho, Kagoshima. The 'health village' concept — a complex offering hot spring bathing, sports, wellness activities, and community gathering — reflects Japanese municipal health policy from the 1980s-90s, when local governments invested heavily in public thermal facilities. In Satsuma-cho, with its dispersed agricultural settlements, the kenkomura serves as the social and physical wellness hub for the entire rural community.