To 33 ports; the busiest crossings are to Wasior (5 hours, nine times a month), Biak (8 hours, eight times a month), Sorong (12 hours), Ujung (Surabaya) (3½ days, eight times a month), Jayapura (29 hours, seven times a month), Makassar (2½ days, seven times a month), Bau-Bau (2 days, five times a month) and Biak (Mokmer) (16 hours, once a week).