Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Yokosuka Onsen; Yuraku no Sato is located in Yokosuka, Kanagawa Prefecture. The sodium-chloride water reaches 42°C. The bathhouse includes an indoor bath, an outdoor bath (rotenburo) and a sauna.
Insider tip — This modern spa resort in Yokosuka offers a complete relaxation complex with natural sodium-chloride thermal waters; the terrace overlooking Tokyo Bay's busy shipping lanes and the nearby U.S. Naval Base lend this onsen a uniquely cosmopolitan atmosphere rare in Japanese bath culture.