Hong Kong, Hong Kong
Underground infiltration tunnel descent at the 3rd Tunnel
Seoul · South Korea
About this experience
The Third Infiltration Tunnel was secretly dug by North Korea 73 metres below ground, with the aim of reaching the South. You go down into the tunnel itself.
It is one of the most striking sights on the Korean border. The descent and the walk back up are physical, so it is best for those who are comfortable on slopes and in enclosed spaces.
Tours featuring this experience.
What’s the weather like in Seoul?
October · Seoul
Historical monthly averages, not a forecast for your travel dates. 2021–2025.
Know what to expect.
How can I book this experience?
This page introduces the experience. Select a tour to see its itinerary, departures, inclusions and price. A tour association does not mean a standalone activity ticket is available.
Changes and cancellation
Cancellation conditions depend on the selected offer. Review the offer’s policy before confirming your booking.
Travelling with children
Age and participation requirements are specific to each offer. Check these before booking; a general family label does not establish eligibility.
Seoul.
A new story every day.

Seoul, the vibrant capital of South Korea, offers a unique blend of traditional and modern culture.
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