Udo is an island reached by boat from the Seongsanpo Passenger Terminal in Jeju. Renting an electric bicycle or scooter to ride around the island, linking Hagosudong Beach, Biyangdo and Geommeolle Beach, is the typical way to see it. Ferries from Seongsan Port run at roughly 30-minute intervals, and a full loop of the island by electric bicycle takes under two hours. On days with heavy fine dust, the island's sharp, clear atmosphere is hard to feel.