Main bathhouse
There is one main bathhouse each for men and women, each with an indoor bath and an open-air bath. The water is Kazawa Onsen, with more than a thousand years of history, piped in through a supply line from the source 2.5 km (1.6 mi) up the Yujiri River. It is a magnesium-sodium bicarbonate spring. As its official name, the “bath for beautiful skin,” suggests, the water feels soft on the skin, and it is said to help with neuralgia, muscle pain, sensitivity to cold and recovery from fatigue; in the old days, it is said, a steady stream of visitors seeking cures crossed mountain paths to reach it. Sink into the open-air bath among the trees, and the plateau’s seasons, fresh green, autumn leaves and snowscapes, spread out before your eyes just as they are.