Introduction to Japanese hot spring baths: The mineral sand hot springs of Japanese hot spring baths are made from more than 3,000 meters of deep-sea volcanic rocks that are naturally rich in silicates, lithium, bromine, tin, iron, copper and other more than 60 kinds of high mineral sands that are beneficial to the human body. Use mineral sand as quilt and stone slab as bed, and cover your whole body with hot sand. Let the heat emitted by the salty sand penetrate into your body, causing the "dirty gas" in your body to evaporate with the hot sweat. Steam in the sand for a few minutes, and your whole body will be refreshed. Feeling relaxed.