To 15 ports; the busiest crossings are to Piraeus (2 hours, about five times a day in season), Sifnos (20 minutes, four times a day in season), Milos (1 hour 10 minutes, about twice a day in season), Kimolos (1 hour 20 minutes, 11 times a week in season), Folegandros (2 hours 20 minutes, 13 times a week in season), Santorini (3 hours 20 minutes, 11 times a week in season), Kythnos (50 minutes, 12 times a week, late May to October) and Heraklion (5 hours 50 minutes, six times a week).