Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Ogoto Onsen Rokkaku Ashiyu, in Ōtsu, Shiga Prefecture near Lake Biwa, offers sodium-chloride thermal water at 39°C. It brings together an indoor bath, an outdoor rotenburo and a sauna.
Insider tip — Ogoto Onsen (雄琴温泉) sits on the western shore of Lake Biwa, Japan's largest lake. The Rokkaku (hexagonal) Ashiyu is a free public foot bath in the resort area — a charming stop on the Biwako scenic drive. Dip tired feet into the warm sodium-chloride waters while gazing across the lake.