Tags: World Heritage Site.
The Jeju Volcanic Island and Lava Tubes is a World Heritage Site in South Korea.Jejudo is a volcanic island 130 kilometers from the southern coast of the Korean Peninsula. The largest island and smallest province in South Korea the island has a surface area of 1846 square kilometers.It is listed at number 23 on CNN Go’s 50 natural wonders: The ultimate list of scenic splendor.