This laid-back seaside resort is at the southern tip of the Satsuma Peninsula and may provide your one chance to try a therapeutic hot-sand bath. At the Sand-Bath Center Saraku, you buy your ticket and rent a yukata, or cotton robe—the small towel is yours to keep—on the second floor of the main hall. In the locker room you change into your robe before heading to the beach. Stand in line and wait for an assistant to call you over. They'll bury you in hot, mildly sulfur-smelling sand with their shovels. Aside from giving you a powerful dose of joint-penetrating heat, the stimulating, sweaty experience is guaranteed to cleanse your pores and soften your skin. This place is a highly scenic one-hour trip south of Kagoshima on the Ibusuki Nanohana local train line. Exit Ibusuki Station and follow the signs—it's a 20-minute walk or a 5-minute cab ride.
5–25–18 Yu-no-hama, Ibusuki, Kagoshima, Kagoshima-ken, 891-0406, Japan