To 23 ports; the busiest crossings are to Mykonos (15 minutes, about 13 times a day in season), Rafina (1 hour 25 minutes, about 13 times a day in season), Andros (40 minutes, about eight times a day in season), Paros (1 hour 5 minutes, about six times a day, April to early October), Naxos (1 hour 5 minutes, five times a day, April to early October), Syros (15 minutes, about three times a day in season), Piraeus (2 hours 25 minutes, twice a day in season) and Santorini (3 hours, three times a day, May to early October).