
Manjanggul Cave
UNESCO World Heritage Lava Tube System
About Manjanggul Cave
Manjanggul Cave is one of the world's longest lava tube caves, stretching an impressive 13.4 kilometers underground. Formed between 200,000 and 300,000 years ago during volcanic activity on Jeju Island, this UNESCO World Heritage site offers visitors a unique journey through an underground world shaped by ancient lava flows.
Formation and Geology
The cave was created when molten lava flowed from nearby volcanic activity, forming a natural tunnel as the outer lava cooled and solidified while the inner lava continued to flow. This process created the extensive tube system we see today, complete with incredible rock formations, lava columns, and unique geological features that provide insight into Jeju's volcanic history.
The Underground Experience
Visitors can explore approximately 1 kilometer of the cave system along a well-maintained path. The highlight of the journey is the massive lava column, standing 7.6 meters tall and recognized as the world's largest lava column. The cave maintains a constant temperature between 11-21°C year-round, making it a perfect escape from Jeju's seasonal weather variations.
Unique Ecosystem
The cave hosts a specialized ecosystem adapted to the dark, humid environment. Various species of bats, spiders, and other cave-dwelling creatures have made Manjanggul their home. The stable environment and unique conditions also preserve ancient lava formations in pristine condition, offering scientists and visitors alike a glimpse into volcanic processes from hundreds of thousands of years ago.
Cave Features
Lava Tube Formation
Formed 200,000-300,000 years ago when lava flowed from nearby volcanic activity, creating this 13.4km tube system
Stone Pillars & Formations
Incredible stalactite-like formations created by dripping lava, including the famous 7.6m lava column
Cave Environment
Unique ecosystem with specialized cave fauna and perfectly preserved lava flow structures
Why Visit Manjanggul Cave
UNESCO World Heritage Site
One of the finest lava tube systems in the world, recognized for its outstanding geological value
Massive Lava Column
Home to the world's largest lava column at 7.6 meters tall, an incredible natural formation
Natural Air Conditioning
Constant temperature of 11-21°C makes it perfect for escaping Jeju's heat or cold
Unique Ecosystem
Home to rare cave-dwelling creatures and unique geological formations
Visiting Tips
What to Expect
- 1km accessible walking path through the tube
- Well-lit pathway with safety railings
- Multiple information displays in Korean and English
- Cool, humid environment year-round
- Spectacular rock formations and lava structures
What to Bring
- Comfortable walking shoes (non-slip soles recommended)
- Light jacket or sweater (cave is cool)
- Camera with flash capability
- Water bottle for after the cave visit
- Cash for admission and parking
Photography Tips
- Flash photography is allowed in most areas
- Tripod can be helpful for low-light shots
- Focus on the unique rock textures and formations
- The lava column is the highlight photo opportunity
- Respect barriers and don't touch formations
Visiting Information
Getting There
Bus #710 to Seongsan then transfer
50 minutes from Seogwipo
Free parking available
Important Notes
- • Cave floor can be slippery when wet
- • Bring a light jacket - it's cool inside
- • Photography is allowed with flash
- • Do not touch cave formations
- • Perfect for hot summer days
- • Wheelchair accessible entrance available
Nearby Attractions

Seongsan Ilchulbong
20 minutes by car
Famous sunrise crater and UNESCO World Heritage site

Hamdeok Beach
15 minutes by car
Beautiful white sand beach perfect for swimming and relaxation

Bijarim Forest
10 minutes by car
Ancient nutmeg forest with 800-year-old trees
Discover the Underground Wonders of Jeju
Explore one of the world's most impressive lava tube systems and witness 300,000 years of volcanic history