Manjanggul Lava Tube만장굴

At a glance

Manjanggul, in Gimnyeong-ri on Jeju's northeast side, is a lava tube about 7.4 km long and part of the Geomunoreum Lava Tube System, one of the pieces of Jeju's UNESCO World Natural Heritage. Its main passage reaches about 18 m wide and 23 m high, and although it formed hundreds of thousands of years ago, its inner shapes are unusually well preserved. Visitors enter by the second of three openings left where the roof caved in and can walk about 1 km past lava stalactites, flowstone and lava shelves to a lava column about 7.6 m tall, reported to be the largest of its kind in the world. The cave reopened to visitors on May 30, 2026.

Book ahead

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Manjanggul Lava Tube · 4 tours & tickets

1. KKdayWorld Heritage tour: Seongsan Ilchulbong & ManjanggulA day tour of Jeju's World Heritage sites that visits Manjanggul and Seongsan Ilchulbong.Book
2. GetYourGuideEast Jeju tour for first-time visitorsA full day in east Jeju with entry fees included, visiting Seongsan Ilchulbong and Manjanggul (Micheon Cave replaces it if Manjanggul is closed). There are no shopping stops.Book
3. GetYourGuideEast coast small-group UNESCO tourA small-group tour of Jeju's east coast; stops include Manjanggul Cave, the Haenyeo Museum and Udo.Book
4. KlookJeju UNESCO day tour with hotel pickupA day tour of Jeju's UNESCO sites with entrance fees and hotel pickup (08:30). Check the itinerary to see whether Manjanggul is one of the stops.Book

Places to stay nearby

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Map

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Tips

• 01
  Some tours swap in Micheon Cave when Manjanggul is closed, so check the itinerary if the lava tube is your main reason for booking.
• 02
  Phone: 064-710-7903.

Nearby

Woljeongri BeachA shallow, emerald-water beach on Jeju's northeast coast, lined with seaside cafes and known for steady waves that draw surfers.Gimnyeong Yacht TourSail a 52-foot yacht off Gimnyeong on Jeju's northeast coast, in waters that wild dolphins call home.Maze LandStone and hedge mazes themed on Jeju's 'three plenties' of stone, wind and women, plus a maze and puzzle museum, in Gujwa.Bijarim ForestA protected forest of about 2,800 bija nutmeg trees, many 500 to 800 years old, with shady walking paths in eastern Jeju.