The Third Tunnel at the DMZ
Quick answerThe Third Infiltration Tunnel is the headline stop on most DMZ tours. Dug by North Korea toward Seoul and discovered in 1978, it runs deep under the border. Visitors walk down a steep access ramp to reach the tunnel and follow it toward the demarcation line. It is a memorable, slightly claustrophobic experience and no cameras are allowed inside.
What it is
One of several tunnels dug by North Korea toward Seoul, discovered in 1978. It could have moved large numbers of troops south quickly.
The visit
You descend a steep ramp or take a monorail on some tours, then walk along the low, damp tunnel toward the border. Helmets are provided.
Before you go
No cameras or bags are allowed inside, and the walk can be tiring on the way back up. Skip it if you are very claustrophobic.
Frequently Asked Questions
Can you go inside the Third Tunnel?
Yes. You walk down an access ramp or ride a monorail, then follow the tunnel toward the demarcation line. Cameras and bags are not allowed inside.
Is the Third Tunnel walk difficult?
The access ramp is steep and the climb back up can be tiring. It is manageable for most visitors, but skip it if you are very claustrophobic or have mobility issues.