KKR Hotel Atami Dry Sauna

Sea-facing hotel onsen that sells individual day-bath entry. The main bath has an approximately 85°C dry sauna, a cool-water bath near 20°C and open-air seating. The operator asks day visitors to check its changing cleaning schedule; weekends and fireworks days close early.

Day bathing generally 11:00–20:00; weekends, holidays and fireworks days until 15:00; check cleaning days