To 23 ports; the busiest crossings are to Sorong (44 hours, 10 times a month), Ujung (Surabaya) (5½ days, 10 times a month), Makassar (4 days, nine times a month), Manokwari (29 hours, eight times a month), Bau-Bau (3½ days, seven times a month), Biak (16 hours, six times a month), Tanjung Priok (Jakarta) (6½ days, six times a month) and Teba (14 hours, once a week).