Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
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Dense, salty water — you float without effort.
SodiumChloruresBrome
Tokyo Yugawara Onsen Manyo no Yu is set in Machida, Tokyo Prefecture. Its sodium-chloride water reaches 42°C, pH 7.3. Facilities include a covered bath, an outdoor rotenburo and a sauna.
Insider tip — The Manyo Club chain famously pipes authentic Yugawara Onsen water — from one of the Kanto region's oldest hot spring resorts, celebrated in the ancient Man'yoshu poetry anthology — directly to urban facilities like this Machida location; the dark sodium-chloride kuro-yu, said to be beauty-enhancing, brings genuine mountain hot spring quality to Tokyo's western suburbs without a 2-hour journey.