It is 17 km around, so you can tour it by bus, bicycle or mini electric car, or walk around it in 3–4 hours. The island is always open, but boats may not sail depending on the weather, so it is better to first ask the Seongsanpo Port Integrated Passenger Terminal (064-782-5671) for sailing times.
Source: Korea Tourism Organization · KOGL Type 1 · 13 photos
Udo Island before you go
Hours
Always open ※ Check the passenger ferry schedule — source 1
Closed days
Open year-round ※ Check the passenger ferry schedule — source 1
Fees
Korea Tourism Organization TourAPI — source 1
Free
VISIT JEJU (Jeju Tourism Organization) — source 2
Udo Island Marine Provincial Park admission: Adult 1,000 won / Youth and military 800 won / Child 500 won (boat fare separate)
Sources differ — call before visiting 064-728-1527
Full bar = straight-line 1.0 km · Within 2,000 m · straight-line distance · Korea Tourism Organization TourAPI
Photos: Korea Tourism Organization · KOGL Type 1, KOGL Type 3 (no changes allowed)
Udo Island in detail
Ferries
Boats to Udo Island leave from Seongsan Port and Jongdal Port on Jeju's main island, and on Udo Island you get off at Cheonjin Port or Haumokdong Port. The ride takes about 10–15 minutes depending on the route. At the terminal you fill in a boarding form, show ID and receive a round-trip ticket. Departure times or the arrival port can change depending on the weather and operating conditions, so check sailing information on the day you go.
Bringing vehicles
Until July 31, 2029, regular rental cars cannot be taken onto Udo Island. The following can go in under conditions: Class 1 low-emission rental cars such as hydrogen and electric cars, and vehicles used by people with limited mobility, such as the elderly, people with disabilities, pregnant women and people with infants. Vehicles of guests staying on Udo Island and 16-seat chartered buses can also go in under conditions. To take a car, you must first ask the shipping company or the passenger terminal whether your vehicle qualifies and what proof you need.
Boats to Udo Island run from two ports, Seongsan Port and Jongdal Port, and the trip takes about 15 minutes from either one. Boats may not run depending on the weather, so ask the Seongsanpo Port Integrated Passenger Terminal (064-782-5671) for sailing times before you leave.
How much is admission to Udo Island?
Korea Tourism Organization TourAPI lists it as free. Visit Jeju lists the Udo Island Marine Provincial Park admission as 1,000 won for adults, 800 won for teenagers and soldiers, and 500 won for children (boat fare separate), so the two sources differ. Calling before you visit is recommended (Udo-myeon Office, 064-728-1527).
Can you walk around Udo Island?
The island is 3.8 km long and 17 km around, and walking around it without stopping takes about 3–4 hours. You can also tour it by bus, bicycle or mini electric car.