Jeju Island, a UNESCO World Heritage site, is home to the highest peak in South Korea, Hallasan Mountain, as well as a stunning coastline with numerous pristine beaches, waterfalls, and unique basalt formations such as the Jusangjeolli Cliffs. Visit Manjanggul Cave, one of the longest lava tubes in the world, and explore lava myths and culture at the Jeju Volcanic Island and Lava Tubes UNESCO World Heritage Site.
