Sauna & Capsule Cure Kokubuncho is a men-only sauna with a capsule hotel in the middle of Kokubuncho, Sendai's main nightlife district, open 24 hours. The sauna room runs on twin stoves with its own automatic loyly and automatic Aufguss, and the 90 cm deep cold bath is fed by free-flowing well water. Guests cool down outdoors in the open air above the district. A three-hour pass costs 1,700 yen, with a late-night surcharge for stays between midnight and 5:00.