To 22 ports; the busiest crossings are to Waren (an hour), Nabire (5 hours 45 minutes), Biak (4½ hours), Biak (Mokmer) (13 hours, once a week), Sorong (24 hours, three times a month), Ujung (Surabaya) (5 days, three times a month), Bariwaro (6½ hours, twice a month) and Poiwai (10 hours, twice a month).