15 minutes from Seongsanpo: a circuit of the island linking Udo’s Eight Scenic Views and its red algal concretion beach

A Volcanic Coast Named for a Lying Cow, Home to the Eight Scenic Views of Udo

Udo is an island off Seongsanpo on the eastern side of Jeju. Its outline is said to resemble a cow lying down with its head raised, which led to its name, formed from the Chinese characters for “cow” and “island.” Its representative scenery is summarized as the Eight Scenic Views of Udo: Jugan Myeongwol, Yahang Eobeom, Cheonjin Gwansan, Jidu Cheongsa, Jeonpo Mangdae, Huhae Seokbyeok, Dongan Gyeonggul, and Seobin Baeksa.

Udo’s coastal landscape consists of more than simple sandy beaches. Seobin Baeksa in the northeast is a beach formed by accumulated red-algal nodules and is Natural Monument No. 438, while black volcanic sediment and sea-eroded cliffs continue around Geommeolle Beach. On many days, Udobong offers views of Seongsan Ilchulbong and the eastern coast of Jeju’s main island within a single panorama, but on windy days it is safer to keep time spent along the ridge short.

The 15-Minute Variable Ride from Seongsanpo Port to Cheonjin Port or Haumokdong Port

Because Udo is not connected by road, visitors must take a ferry from places such as the Seongsanpo Port General Passenger Terminal. Ferries departing from Seongsan Port arrive at either Cheonjin Port or Haumokdong Port on Udo. Actual service intervals, first departures, and last departures may vary by season and weather, so decisions should be based on the terminal’s operating notices on the day of departure. Waves and strong winds affect ferry services more directly than rain.

Ferry tickets generally provide information about round-trip fares and fees related to admission to the provincial park together. The island itself is a public area open year-round, so there is no separate single attraction admission ticket for entering Udo, but ferry transportation costs apply. The Seongsan Port Tourist Information Center is listed at 064-782-8860; on-site and ferry-company notices should take priority for vessel schedules and cancellations.

• Departure point from Seongsanpo: Seongsanpo Port General Passenger Terminal area
• Arrival points on Udo: Cheonjin Port or Haumokdong Port
• Service decision: Check the weather and ferry-company notices immediately before departure
• Recommended return preparation: Head toward the port at least one hour before the last ferry rather than waiting until the last minute

Why to Calculate the Loop Bus, Walking, and Cycling Options Before an Outside Rental Car

Udo has restricted outside vehicle operations to reduce environmental and traffic burdens. Bringing a regular rental car onto the island is generally restricted and may be conditionally permitted only for recognized reasons, such as having a lodging reservation on Udo, traveling with a pregnant person, person with a disability, or older adult requiring transportation assistance, or traveling with a preschool child under six. Visitors should confirm eligibility and required documentation with the ferry company or on-site staff before boarding.

After arrival, the main options are sightseeing loop electric buses, electric bicycles, electric scooters, and small electric-car rentals. If you have little driving experience or are traveling with someone who has difficulty walking, combining the loop bus with short walks is preferable to using powered personal transportation. When using an electric bicycle or scooter, consider coastal winds, slopes, remaining battery power, and the return time together, and avoid driving without the required license.

How to See Natural Monument No. 438, Seobin Baeksa, and Hagosudong on the Same Day

Seobin Baeksa is a beach of red-algal nodules on Udo’s northeastern coast. Unlike an ordinary quartz-sand beach, it is made of sand-sized calcium carbonate particles produced by red algae that have hardened into red-algal nodules. Because of this geological feature, it was designated Natural Monument No. 438. The priority is to follow conservation rules along the designated coast without taking or damaging beach materials.

The stretch from Seobin Baeksa to Hagosudong Beach is well suited to combining eastern coastal scenery. If swimming is your goal, first check the on-site guidance concerning currents, wave height, and safety personnel before deciding. Since some sections between the beaches have little shade, it is advisable to prepare a hat and drinking water. Beach operation and safety-management hours may vary by season.

From Geommeolle Beach to Udobong Lighthouse Park: A Contrast of Black Sand and Ridges

As its name suggests, Geommeolle Beach is characterized by black sand and dark-colored coastal landforms. Jugan Myeongwol, one of the Eight Scenic Views of Udo, is explained in connection with light reflected onto the ceiling of a sea cave near Geommeolle. Whether the cave and coast can be approached may vary according to wave conditions and the tides. On days with high waves, the basic rule is not to descend recklessly toward the sea cave.

The route from Geommeolle toward Udobong and Lighthouse Park involves elevation changes even over a short period. Udobong is a representative viewpoint overlooking the island’s eastern tip, and Lighthouse Park includes an exhibition space described as Korea’s first lighthouse park. Sneakers or shoes with slip-resistant soles are suitable, and during windy seasons you should be prepared to secure your hat and light outer layer.

Whether to Include the Biyangdo Coastal Trail: Set a 4–6-Hour Day-Trip Route First

A day trip to Udo should generally allow at least four hours including ferry times, or about five to six hours when beach walks, Udobong, meals, and waiting time are included. If entering through Cheonjin Port, consider first visiting Seobin Baeksa and Hagosudong in the east, then passing Udobong and Geommeolle before returning to the port. For greater efficiency, adjust the starting order according to whether the actual arrival port is Cheonjin Port or Haumokdong Port.

The Biyangdo Coastal Trail suits travelers who want to add scenery in northwestern Udo, but it is better to lower its priority in the afternoon when the last ferry is approaching. Since the time needed to return to the port is the most important fixed point of the trip, record the return time for rented transportation and the return port separately on your phone. If rain and strong winds are forecast, it is more realistic to shorten the plan and focus on the area around the port and an indoor meal rather than the Udobong ridge or sea caves.

Basic Information to Know in Yeonpyeong-ri, Udo-myeon, and Items to Check Before Visiting

Udo’s administrative address is Udo-myeon, Jeju-si, Jeju Special Self-Governing Province, while Yeonpyeong-ri, Udo-myeon is the location commonly used in tourist information. The Udo-myeon Community Service Center is listed at 1409 Yeonpyeong-ri, Udo-myeon, with the telephone number 064-728-1527. Because the entire island is not a single facility, one fixed operating schedule or closing day cannot be applied.

As Udo is a public island area, admission can be considered free, but an actual visit involves separate costs such as round-trip ferry fares, transportation rental fees, and parking fees. Parking is available at public and private lots around Seongsanpo Port, and prices and available spaces may vary by period. Wheelchair and stroller users should check the boarding ramps, port restrooms, and loop-bus boarding and alighting conditions separately before departure.

• Address: Udo-myeon, Jeju-si, Jeju Special Self-Governing Province
• Main contact: Udo-myeon Community Service Center, 064-728-1527
• Tourist information: Seongsan Port Tourist Information Center, 064-782-8860
• Official tourism information: https://www.visitjeju.net
• Recommended stay: 4–6 hours including ferry travel
• Single attraction admission: Free; ferry, rental, and parking costs are separate