Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Matama Onsen Horai no Sato; Sennin Yu is located in Bungotakada, Oita Prefecture. Its sodium-chloride thermal waters reach 40°C. Indoor bath, outdoor bath (rotenburo) and sauna form a setting well suited to relaxing after a day out.
Insider tip — 'Horai no Sato Sennin Yu' (hermit's bath at Penglai Paradise) at Matama Onsen in Bungotakada. The Kunisaki Peninsula's ancient Buddhist hermits sought enlightenment in its cave temples; the 'hermit's bath' name honours this tradition. Bungotakada town is also celebrated for preserving a 1950s townscape.