Jeju Island UNESCO Global Geopark

Jeju is a volcanic island formed by volcanic eruptions. Nine geological sites with outstanding landscapes and immense geoscience value—including Hallasan, Seongsan Ilchulbong, and Manjanggul Cave—have been certified as the Jeju Island UNESCO Global Geopark. Major attractions include Hallasan (1,950m), the highest peak in South Korea, Manjanggul Cave (7,400m long) within the Geomunoreum Lava Tube System, Sanbangsan Mountain, and Yongmeori Coast, all of which preserve the original forms of volcanic topography.