To 37 ports; the busiest crossings are to Ujung (Surabaya) (24 hours, 14 times a month), Makassar (2½ days, 12 times a month), Bau-Bau (3 days, 10 times a month), Ambon (4 days, six times a month), Sorong (4½ days, six times a month), Jayapura (7 days, six times a month), Batu Ampar (32 hours, once a week) and Tanjung Balai Karimun (40 hours, once a week).