To 52 ports; the busiest crossings are to Kamal (30 minutes, 20 times a day), Makassar (25 hours, 16 times a month), Tanjung Priok (Jakarta) (23 hours, 14 times a month), Bau-Bau (43 hours, 14 times a month), Sorong (3½ days, nine times a month), Jayapura (5½ days, nine times a month), Ambon (3 days, eight times a month) and Manokwari (4 days, seven times a month).