Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Kirakuri, in Kawasaki, Kanagawa Prefecture, taps sodium-chloride water at 41°C. Indoor bath, outdoor rotenburo and sauna make up the offering at this urban onsen.
Insider tip — Kirakuri at Mizoguchi Onsen serves the Tama Ward of Kawasaki City where the Tama River forms the boundary between Kanagawa and Tokyo in one of Japan most densely urbanized corridors. Kawasaki is Japan most industrially productive city — the Keihin Industrial Zone along the Tama River delta hosts Japan highest concentration of petroleum refining, steel production, and chemical manufacturing — yet the Tama Ward highlands above the industrial waterfront preserve a remarkably suburban character of parks and thermal baths serving the communities that flank the industrial core.