Ganban'yoku
Ganban'yoku is the Japanese term for a popular form of hot stone spa. It is said to have originated in Japan.
Body-sized stones, such as granite, are heated into the floor. Bathers lie clothed on the stones while their bodies gradually heat up. Wikipedia
People also ask
岩盤浴とサウナはどっちがいいの?
岩盤浴とサウナは同じ日にできますか?
岩盤浴は何回くらい入ったらいいですか?
岩盤浴にはどんな効果があるのですか?
ミネラルを多分に含む岩塩が血行促進・疲労回復・呼吸器の回復に働きかけます。