Manjanggul Lava Tube 만장굴
Last checked: October 2026
Part of the Geomunoreum lava tube system (UNESCO). About 1 km of the 7.4 km cave is open, ending at a 7.6 m lava column.
Reopened on May 30, 2026. It was closed for more than two years after a rockfall.
Worth it?
Yes
You walk a kilometer inside a real lava tube, and it has only just reopened. A good choice on a rainy or hot day.
Visiting
- Hours
- 09:00–18:00, last entry 17:00. Closed on the first Wednesday of each month.
- Getting there
- In Gujwa, on the northeast side of the island. No subway: go by car, or plan the bus with Kakao Map or Naver Map.
- Time needed
- About 1 hour.
Tips
- The cave is cool and wet all year. Bring a jacket and shoes with grip.
Nearby
More around here: the Jeju guide.
FAQ
Is Manjanggul open?
Yes, since May 30, 2026. It's closed on the first Wednesday of each month.