Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
BicarbonatesSodiumCalcium
Tsurugisan Yufuasa Onsen sits in Tsurugi, Tokushima Prefecture, at the foot of Mount Tsurugi. The bicarbonate thermal water flows here at 40°C with a pH of 8. Visitors can use an indoor bath, an outdoor bath (rotenburo) and a sauna.
Insider tip — At the foot of Mt. Tsurugi (剣山 — 1,955 m, Shikoku's second highest peak), this morning-spring onsen (yufuasa) offers recuperation after the popular summit hike. Mt. Tsurugi is sacred in the Shugendo mountain ascetic tradition, and the spring waters carry a pure alpine quality from its slopes.