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Lava column in Manjanggul cave in Jeju island, Korea. Manjanggul is one of the finest lava tunnels in the world. #262248916
Description
Jeju, Korea - April 14, 2015: Lava column in Manjanggul cave in Jeju island, Korea. Manjanggul is one of the finest lava tunnels in the world. And it is designated as UNESCO World natural heritage.