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~3ha 4–6 hour stop ashoreJust turn up#See

Manjanggul lava tube

Round trip
2 hr 50 min
From the ship and back
Fits
a 4–6 hour stop ashore
Margin already counted
Getting there
Jeju Port · taxi ~40 min
See the rides below
Booking
Just turn up
Nothing to reserve
Why we send people here

A lava tube over seven kilometres long, one of the longest in the world, with a walkable section lit and decked. Reopened on 30 May 2026 after a two-year repair; closed the first Wednesday of the month.

Why it earns the hours
  • Our number 3 for Jeju, out of ten. It is the first thing we would spend the hours on.
Before you count on it
  • Closed the first Wednesday of the month. Check the day before you plan around it.
  • No single published ride covers this one. Budget for a taxi both ways, or fold it into a guided day.
The story

Why Manjanggul lava tube is famous

Manjanggul formed when the surface of a lava river cooled while the lava inside kept flowing out. It is one of the longest lava tubes in the world, with a lava column 7.6 metres high near the end of the open section. It closed in December 2023 for rockfall repairs and reopened on 30 May 2026.

Where it is

Manjanggul lava tube and your ship

Both pins on one map, so the distance is a fact rather than a feeling.

The arithmetic

Where the 2 hr 50 min goes

Counted from the moment you step off the gangway. The hour before all-aboard is not in this bar; it is already set aside.

Out40 minJeju Port · taxi ~40 min
There1 hr 30 minWhat you came for
Back40 minTo the gangway

40 minutes each way is the honest figure for jeju port · taxi ~40 min, not the optimistic one. If your ship is late, cut the 1 hr 30 min in the middle. Never cut the hour at the end.

The day this belongs to

Routes that already include it

Each one is a finished day we have walked and timed, with this stop in it. Read the route rather than assembling it yourself.

Pairs well with

What to put beside it

Each of these still lands you back aboard with the hour to spare.

Build your own day →
The one rule: be back on board 60 minutes before all-aboard. Build the whole day on the Jeju plan page.