description Manjanggul Overview
Manjanggul is a lava tube on Jeju Island, South Korea, extending approximately 8.9 kilometers. It formed from basaltic lava flows between 100,000 and 300,000 years ago. The cave contains lava stalactites, lava toes, and a 7.8-meter lava column, one of the largest known. A one-kilometer section is open to the public.
Manjanggul is part of the Jeju Volcanic Island and Lava Tubes UNESCO World Heritage site inscribed in 2007.
help Manjanggul FAQ
How long is Manjanggul lava tube and how much can visitors explore?
Manjanggul extends over 8 kilometers on Jeju Island, making it one of the longest lava tubes in the world. Only about 1 kilometer of the tube is open to the public, featuring paved walkways and electric lighting for safe passage.
What is the most famous geological feature inside Manjanggul?
The lava column near the end of the public section stands approximately 7.6 meters tall and is believed to be the largest known lava column in the world. It formed when molten lava pooled and cooled at the tube's lowest point.
When was Manjanggul inscribed as a UNESCO World Heritage site?
Manjanggul was inscribed as part of the 'Jeju Volcanic Island and Lava Tubes' UNESCO World Heritage site in 2007. It was recognized alongside other lava tubes on Jeju Island such as Gimnyeongsagul and Bukchondae Hagoe-donggul.
How was Manjanggul lava tube formed?
Manjanggul was created by basaltic lava flows from the Geomunoreum volcanic cone, which erupted multiple times in the past. As the surface of a lava flow cooled and hardened, the molten lava beneath continued flowing, eventually leaving behind an empty tunnel.
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