Jeju Island is the largest island off the coast of the Korean Peninsula, and the main island of Jeju Province of South Korea. The island lies in the Korea Strait, south of South Jeolla Province. The island contains the natural World Heritage Site Jeju-do Volcanic Island and Lava Tubes.Jeju-do has a moderate climate; even in winter, the temperature rarely falls below 0 °C (32 °F). Jeju-do is a popular holiday destination and a sizable portion of the economy relies on tourism and economic activity from its civil/naval base.
There's plenty on Jeju-do to appeal to those who prefer to be active. Hike up South Korea's highest mountain, Halla-san, or climb the incredible tuff cone Seongsan Ilchul-bong, rising straight from the sea, to watch the sun rise from the ridge of a crater. For a less-demanding nature experience, meander along one of the Jeju Olle Trails and explore tangerine-trimmed country roads, jagged coasts and narrow lanes dotted with cottage-style homes made from black lava rock. The ocean is never far away, so plunge into blue seas to view coral as colourful as the sunsets and dig into Jeju-do's unique cuisine, including seafood caught by haeneyo (female free divers).