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Jeju Island Caves

Jeju Island's volcanic landscape features an extensive network of lava tubes and coastal caves. The UNESCO-listed Manjanggul system showcases geological formations like lava columns and flowlines. Other sites include Guringul, historically used for cold storage, and the man-made tunnels at Songaksan, which served as military coastal defenses during the Japanese occupation in the 1940s. These sites illustrate both the island’s volcanic origins and its mid-20th-century history.

A

Manjanggul Lava Tube Entrance

UNESCO World Heritage site and one of the world's longest lava tubes. It features a 7.6-meter lava column, the largest known of its kind, along with lava stalactites and flowlines.

B

Guringul

Natural lava tube on the slopes of Hallasan Mountain, historically utilized as a natural cold storage facility by local residents.

C

Manjang-gul je2ibgu

Secondary access point to the Manjanggul lava tube system.

D

Cold cave

Volcanic cave characterized by its ability to maintain freezing temperatures year-round.

E

Song-agsan jinjidong-gul

Artificial coastal bunkers excavated by the Japanese military during the 1940s for coastal defense and military storage.