Jeju
만장굴
Manjanggul Lava Tube
One of the world's longest and best-preserved lava tube systems. 1km of the 13.4km cave is open to visitors — includes a 7.6m lava column, the largest in the world.
4,000 KRW adults
09:00–18:00 (last…
Spring, Summer, Autumn, Winter
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