Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
SoufreSulfuresSulfates
Kinshuko Onsen Anayukko is a hot spring facility in Nishiwaga, Iwate Prefecture. Its sulfurous thermal water emerges at 42°C (pH 6.5) and fills an indoor bath, an outdoor rotenburo and a sauna.
Insider tip — Nishiwaga-cho in the Kitakami highlands of Iwate is one of Tohoku's least-touristed mountain zones — beech forest wilderness, volcanic hot springs, and the Suzuki no Sato ski resort deep in the snow country. Kinshuko (Golden Brocade) Onsen taps intense sulfurous waters from the Kitakami mountain aquifer. The 'Anayukko' name references the local tradition of snow caves — in deep winter, local children build anayuki (snow holes) to play in, and the onsen offers the perfect warming refuge after any encounter with Nishiwaga's legendary snowfall.