Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Shoei Onsen, in Neyagawa, Osaka Prefecture, features thermal sodium-chloride water at 38°C, along with an indoor bath, an outdoor rotenburo and a sauna.
Insider tip — 'Shoei' (flourishing/brilliant) Onsen is a neighbourhood sento in Neyagawa, Osaka. Like many Greater Osaka bathing establishments, it draws deep artesian hot spring water that emerges warm and amber-coloured. A reliable local institution.