Kamui no Yu
Chloride spring water drawn from 200 meters underground. Used in some parts of the open-air bath and indoor bath, it is characterized by its ability to warm the body from the core. In winter, soaking in the open-air bath amidst snowy landscapes reveals fantastical rock formations, creating an atmosphere reminiscent of a hidden hot spring. It is effective for joint pain, neuralgia, fatigue recovery, and chronic digestive disorders. After bathing, the warming effect continues, keeping the body comfortably warm for an extended period. The indoor bath uses special ultra-soft water, which is expected to have a beautifying effect on the skin, providing a good lather.