To 17 ports; the busiest crossings are to Rhodes (50 minutes, about nine times a day in season), Kos (1 hour 25 minutes, about twice a day in season), Kalymnos (2 hours 5 minutes, 12 times a week in season), Lipsi (3 hours 20 minutes, nine times a week in season), Patmos (3 hours 45 minutes, eight times a week in season), Tilos (1 hour 35 minutes, nine times a week in season), Nisyros (2 hours 25 minutes, nine times a week in season) and Agia Marina (Leros) (2 hours 55 minutes, six times a week).