Kozushima's pristine beaches are not the island's only spots for vacationers to relax and unwind. Its Hot Spring Health Center is a unique complex of indoor bathing facilities including saunas and jacuzzis, but also open-air baths built into rock, which are open from July through September.
The outdoor baths remain open until after dark. Head there after dinner to relax and unwind while gazing up at the starry night sky. Buses to the center run until early evening but are infrequent, so access by taxi is most convenient.