Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Chichibu Onsen Mangan no Yu is located in Agano, Saitama prefecture. The sodium-chloride water is kept at 41°C, with an indoor bath, an open-air outdoor bath and a sauna.
Insider tip — Chichibu Onsen Mangan no Yu draws its waters from the deep geological strata beneath the Chichibu basin, a mountain-ringed valley in western Saitama celebrated for its autumn leaf-viewing temples and pilgrimage trails. The warm sodium-chloride spring is particularly restorative after hiking the 34-temple Chichibu pilgrimage route. The facility blends contemporary amenities with a traditional atmosphere. Arriving by the Seibu Chichibu Line makes for a car-free mountain onsen day trip from Tokyo.