Manjanggul Cave (만장굴) is one of the longest and most significant lava tubes in the world, located in Gujwa-eup, Jeju City, Jeju Island, South Korea. Designated as Natural Monument No. 98 and also a UNESCO World Heritage site as part of the Jeju Volcanic Island and Lava Tubes, it offers a fascinating glimpse into the island’s volcanic past.
Key Features:
Massive Lava Tube System: Manjanggul Cave is part of a larger lava tube system that stretches for approximately 13.4 kilometers. However, only a 1-kilometer section is currently open to the public for exploration.
Formation by Volcanic Activity: The cave was formed by the flow of lava from the Geomunoreum volcano around 2.5 million to 300,000 years ago. As the lava flowed and cooled, it created these unique underground tunnels.
Diverse Cave Features: Inside the accessible section, visitors can observe various fascinating geological formations created by the lava flow, including:
- Lava Stalactites and Stalagmites: Formed by dripping molten lava.
- Lava Columns: Where the ceiling and floor of the tube joined together.
- Lava Flow Lines: Markings on the walls indicating the direction and height of the ancient lava flow.
- Lava Shelves: Terraces formed as the lava level changed.
- Rope-like Lava: Surfaces resembling twisted ropes.
The World’s Largest Lava Column: At the end of the publically accessible section stands a magnificent lava column, the largest known in the world, measuring approximately 7.6 meters (25 feet) in height.
Habitat for Cave Life: The dark and humid environment of the cave provides a habitat for various cave-dwelling creatures, including bats (various species), spiders, and insects.
Cool and Consistent Temperature: The interior of the cave maintains a relatively cool and consistent temperature year-round, typically between 11 to 21 degrees Celsius (52 to 70 degrees Fahrenheit), making it a refreshing escape in warmer weather.
Visiting Information:
Location: 182 Manjanggul-gil, Gujwa-eup, Jeju-si, Jeju-do, South Korea (제주특별자치도 제주시 구좌읍 만장굴길 182)
Operating Hours: 09:00 – 18:00 (Last admission at 17:30).
Closed: The first Wednesday of every month.
Admission Fees (Individual):
- Adults: 4,000 won
- Teenagers (13-18): 2,000 won
- Children (7-12): 2,000 won
Parking: Available (ample free parking).
Website: UNESCO World Heritage Center – Jeju Volcanic Island and Lava Tubes (contains information about Manjanggul). You can also search for “Manjanggul Cave” on the official Visit Jeju website.
What to Wear/Bring: The cave floor can be uneven and damp, so wear comfortable walking shoes. A light jacket might be advisable due to the cooler temperature inside. The cave is dimly lit, so be mindful of your surroundings.
Manjanggul Cave offers a unique and awe-inspiring experience of exploring a massive underground lava tube system, showcasing the powerful geological forces that shaped Jeju Island. It’s a must-visit for nature enthusiasts and anyone interested in the island’s volcanic heritage.
