Jeju Island is the largest island in South Korea. It is located in the southwest of South Korea. It covers an area of 1845 square kilometers and has a population of 668000. There is Jeju City on the north coast.
The geographical location of Jeju Island is 32 n ° 06′～33 ° 00 ', 126 e ° 08′～126 ° It is 452 km from Seoul, 310 km from Pusan, 989 km from Osaka, 499 km from Shanghai and 1030 km from Hong Kong.

Jeju Island is the largest island in South Korea, also known as tanro Island, honeymoon island and romantic island. Jeju Island is located in the East China Sea, the south end of the Korean Peninsula. It is 100 km (60 miles) southwest of Jeonnam road and faces the peninsula across the Jeju Strait. It is more than 90 km north from the south coast of South Korea. It is the gateway of the Korean Strait. Its geographical location is very important. It covers an area of 1825 square kilometers (705 square miles).
Jeju Island is an island formed by volcanic activity 1.2 million years ago. Formed by volcanic eruption, the landform is very peculiar. The geology of Jeju Island is composed of sedimentary rocks, basalt, volcanic undercurrent and pyroclastic rocks formed by volcanic activities. Jeju Island is a typical lava cave terrain, and more than 60 caves have been found so far.

Jeju Island is surrounded by the sea, including 26 small islands. Island shaped ellipse, made of volcanic material. Including hundreds of hills, waterfalls, cliffs and lava tunnels. There are mainly 34 islands, such as NiuDao, Wodao, brother Island, zhagui Island, mosquito island and Tiger Island. It is an ideal tourist and fishing resort. Here you can enjoy the historical sites and natural landscape. On the island stands the higher mountain of South Korea - Hannah mountain, which is 1950 meters above sea level.

The climate of Jeju Island is dry and windy in winter and humid and rainy in summer. The annual average temperature is about 16 ℃. The maximum temperature in summer is 33.5 ℃ and the minimum temperature in winter is 1 ℃. Jeju Island is located near the 33 degree north latitude line, but has the characteristics of southern climate. It is the place with the highest average temperature and the most precipitation in South Korea. Jeju Island has a mild climate, known as Hawaii, South Korea. All these reflect the simple folk customs on Jeju Island.