To 18 ports; the busiest crossings are to Tanjung Serdang (35 minutes), Garongkong (24 hours, twice a week), Waingapu (3½ days, four times a month), Pare-Pare (23 hours, twice a month), Ujung (Surabaya) (30 hours, twice a month), Makassar (31 hours, twice a month), Bontang (Lok Tuan) (2 days, twice a month) and Lembar (2½ days, twice a month).