Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
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Dense, salty water — you float without effort.
SodiumChloruresBrome
Kamitsushima Onsen Nagisa no Yu is located in Kamitsushima, on Tsushima Island, Nagasaki Prefecture. Sodium-chloride water at 42°C, pH 7.3. Facilities include an indoor bath, an outdoor rotenburo and a sauna.
Insider tip — In the northern reaches of Tsushima, the remote Korean Strait island that served as Japan's gateway to the Korean peninsula for millennia, Nagisa no Yu (shoreline waters) draws saline spring water with the mineral character of the surrounding sea; Tsushima's extraordinary cat population (Tsushima mountain cats), wild deer, and spy-thriller-worthy border proximity to South Korea make this a fascinatingly remote spa destination.