I visited Jeju Island during my trip to South Korea. Located in southwestern South Korea, Jeju Island is the largest island in the country and its only special autonomous province. The direct flight from Guangzhou to Jeju Island takes about two and a half hours. Jeju Island is famous for its volcanic landscape and mild climate, earning it the nickname "Korea's Hawaii." In 2007, its natural landscapes, including Hallasan Mountain and lava caves, were listed as a UNESCO World Natural Heritage Site. Famous attractions on the island include Hallasan Mountain, lava caves, Seongsan Ilchulbong Peak, and the Olle Trails, among others.