Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Daigo Onsen Hoyo Center Shinrin no Onsen sits in Daigo-machi, Ibaraki Prefecture. Its sodium-chloride water emerges at 41°C, pH 7.3. The venue includes an indoor bath, an outdoor rotenburo and a sauna.
Insider tip — Near Fukuroda Falls — one of Japan's celebrated top-three waterfalls whose four faces change dramatically with each season — Shinrin no Onsen (forest spring) immerses bathers in the cedar-forested Kuji River valley that has produced Japan's finest sweet potatoes (ibaraki-imo) for centuries; the falls viewpoint and forest spa combine into one of the Kanto region's finest nature day trips.