To 14 ports; the busiest crossings are to Nisyros (40 minutes, 12 times a week in season), Kos (an hour and a half, 12 times a week in season), Rhodes (1 hour 50 minutes, 12 times a week in season), Symi (1 hour 35 minutes, nine times a week in season), Kalymnos (3 hours 40 minutes, five times a week in season), Chalki (35 minutes, five times a week in season), Kastelorizo (6¾ hours, three times a week in season) and Piraeus (14½ hours, three times a week in season).