Ibusuki Onsen is a group of hot springs that include Surigahama Onsen, Yajigayu Onsen, and Nigatsuden Onsen at the southern end of the Satsuma Peninsula in Kagoshima Prefecture. It is best known for its steaming sand baths along the beach, where bathers in a yukata, or a Japanese bathrobe get buried in the sand up to their neck. The sand heated by the steam containing marine minerals is scientifically proven to have therapeutic effects on neuralgia, rheumatism, back pain and other ailments.
(指宿温泉は、鹿児島県最南端・薩摩半島にある摺ケ浜温泉、弥次ケ湯温泉, 二月田温泉な どの温泉群の総称であり、海岸沿いにある砂蒸し風呂でよく知られている。砂蒸しでは浴衣を着て首まで砂に埋まる。海水ミネラルを含む蒸気で温まった砂は、神経痛、リウマチ,腰痛などの病に効果があると科学的に立証されている)