To 9 ports; the busiest crossings are to Hyojado (10 minutes, three times a day), Daecheon (30 minutes, three times a day), Yeongmok (10 minutes, twice a day), Sodo (15 minutes, twice a day), Chudo (20 minutes, twice a day), Heoyukdo (27 minutes, twice a day), Yukdo (Boryeong) (32 minutes, twice a day) and Woldo (43 minutes, twice a day).