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Manjanggul Lava Tube

There were about 160 lava tubes on Jeju Island. Manjanggul Lava Tube was the biggest at over seven kilometres in length. It was formed between 1 000 to 3 000 years ago when Geomunoreum volcanic crater erupted. Near Manjanggul, four other lava tube caves were formed, but only Manjanggul was open to the public. Continue reading Manjanggul Lava Tube