The Thermes Marins Monte-Carlo is a 6,600 m² seawater wellness centre on the harbour, run by the Société des Bains de Mer and linked directly to the Hôtel de Paris and Hôtel Hermitage. Its Espace Wellness has a heated indoor seawater pool, a sauna, a hammam, an outdoor whirlpool facing the Port and the Rock, a cold bath and an ice fountain. Pool, sauna and hammam open daily 7:00 to 21:00; outside visitors pay €160 on weekdays and €200 at weekends.