To 24 ports; the busiest crossings are to Ischia Porto (50 minutes, 26 times a day), Capri (50 minutes, 25 times a day), Procida (35 minutes, 18 times a day), Sorrento (35 minutes, seven times a day in season), Forio (an hour, about seven times a day in season), Casamicciola (50 minutes, about six times a day in season), Nisida (an hour, four times a day, July to mid-September) and Positano (1 hour 5 minutes, about four times a day, late March to mid-November).