Address : Cheju, Udo-myeon, Udo

Udo , also known as U Island, is the largest of the islands included in Jeju Province. The island is located on the northeast of Seongsan-ri, 3.5 kilometres (2.2 miles) off the coast of Jeju Island in South Korea. Udo, literally "Cow Island" in Hanja, has this name because of its resemblance of a cow lying down. The whole of Udo is a lava plateau and a fertile flatland where major agricultural products such as sweet potatoes, garlic, and peanuts are produced. There is a parasitic cone, called soeui meori oreum in native Korean, in the southeast. Udo is one of the most visited spots in Jeju Island. About a million people visit Udo every year. Thanks to the scenery, it became the location for a few Korean films. Especially, Seobinbaeksa located on the west-coast of Udo Island was created by Rhodolith, which is the only beach created by this in Korea. Udo can be reached by multiple ferries which run from morning 8:00am till 6pm. There are many activities and car rental services on Udo Island.

Address : 2070-61 1100(Cheonbaek)-ro, Cheju, Jeju-do, South Korea

Located in Jeju Island, Hallasan National Park is known to be one of the must see places while on the island. This park attracts locals and visitors from all over the world. Hallasan features the tallest mountain in South Korea, the shield volcano mountain Hallasan. Hallasan National Park is a treasure trove of unique ecological and geological systems. The biodiversity here is large and many species can be found simply by hiking on a trail. Make sure to check out Yeongjusan Mountain, a popular mountain that locals dub, "a mountain that is high enough to pull the galaxy." Although a national park, this park is not managed by the Korea National Park Service but instead it is managed by the Jeju Special Self-Governing Province.

Address : 15 Yongduam-gil, Yongdam 2(i)-dong, Jeju-si, Jeju-do

Situated on the northern coast in downtown Jeju, Yongduam Rock is an estimated 10-meter-tall stone that has been worn down over time by strong winds and waves into a shape resembling a dragon's head. There are many legends surrounding the rock. One legend has it that a dragon stealing precious jade from Hallasan Mountain was shot down by an arrow from the mountain deity. When he fell down, his body immediately sank into the ocean and his head rapidly froze looking at the sky. Another legend has it that a white horse, who dreamed of being a dragon and ascending to the sky, came to be caught by a soldier and froze into the rock.

From Yongduam Rock, visitors can see haenyeo (female divers) working at catching seafood. Near the rock are various cafes, bars, and restaurants. The coastal road between here and Aewol-eup is popular among couples. Cafes and seafood restaurants began to appear there five years ago and now form a pleasant café village.

Address : 768 Bijarim-ro, Jochon-eup, Cheju, Jeju-do, South Korea

Sangumburi Crater has been designated as a Natural Monument. It is located on the southeast side of Jeju, and is a flat crater, about 650 meters wide, 100 meters deep, and 2,070 meters in circumference. If you look at the crater from above up, it looks like a man-made circular stadium. There is a variety of plant-life in the crater. On the north side, Nandaeseong vegetation such as red-thorn trees, and magnolia trees grow, along with the rare winter strawberries. On the south side of the crater, Ondaerim vegetation such as evergreens, maples, and mountain strawberry trees cover the area. Because so many different kinds of trees and plants grow in such a limited space, it attracts the attention of researchers as well.

Address : Jeondong-dong, Jeju City, Jeju Island

When you come to Jeju Island, black pork has become a must-try food. The black pork street is actually not very long. There is a street of about 50 meters long from north to south. On both sides of the street, there are barbecue restaurants mainly focusing on black pork. This food street is a must-see food gathering place for tourists who love barbecue. . However, the hottest and most popular one is the "Dolphin" on the left side of the street. The store is quite large, and you have to queue up after 7 o'clock in the evening.