Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
The Komatsuno Onsen; Shunraku onsen, in Hirosaki, Aomori, offers thermal sodium-chloride water at 41°C in a setting combining an indoor bath, outdoor bath and sauna.
Insider tip — 'Shunraku' (spring delight) at Komatsuno Onsen in Hirosaki — Japan's apple capital and home of one of the country's most spectacular castle cherry blossom scenes. The Tsugaru area's abundant hot springs tap deep sodium-chloride waters from the Ou Mountain volcanic belt. Visit in late April for the legendary Hirosaki Castle sakura.