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Underground infiltration tunnel descent at the 3rd Tunnel

Seoul · South Korea

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The experience

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.

The journey around it

Tours featuring this experience.

Your season to travel

What’s the weather like in Seoul?

Monthly averages

October · Seoul

20°Average high
12°Average low

Historical monthly averages, not a forecast for your travel dates. 2021–2025.

Before you go

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.

Beyond the experience

Seoul.
A new story every day.

Explore the city guide
A narrow hanok street in Seoul between stone walls and snow-covered tiled roofs

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

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