These caves, apart from providing opportunities for scientific research, are popular tourist destinations.

The Manjanggul Lava Tube represents the largest cave in this system.

It stretches for 8,928 meters and its passages are up to 30 meters high and 23 meters wide.

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This intimidating column stands 7.6 meters high and is the largest known in the world.

Entrance to the cave.Photo credit

The world’s largest lava column in Manjanggul cave.Photo credit

Sources:Wikipedia/Wondermondo/geopark.jeju.go.kr/jikimi.cha.go.kr

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