
Third Infiltration Tunnel Seoul
Descend into a clandestine tunnel dug by North Korea, a stark reminder of the divided peninsula's tense history.

Highlights
Must-see attractions
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Best Time
Fewer tour groups

Third Infiltration Tunnel Seoul
Best Time
Fewer tour groups

Highlights
Must-see attractions
Descend into a clandestine tunnel dug by North Korea, a stark reminder of the divided peninsula's tense history.
"A chillingly real glimpse into the ongoing division of Korea, the Third Infiltration Tunnel is a must-see."

Tunnel is Optional! 🚶
Don't feel pressured to enter the tunnel if you're not up for it. You can wait outside.
Wear Comfortable Shoes :athletic_shoe:
The tunnel descent is steep and can be slippery. Comfortable footwear is a must.

Quick Facts
Hours
Rating
4.6 · 2,945 reviews
Type
Historical Landmark
Highlights
Discover the most iconic attractions and experiences

Third Infiltration Tunnel
Underground
Descend into a narrow, steep tunnel dug by North Korea for infiltration. A stark reminder of the ongoing division.

Dora Observatory
Near the DMZ
Gaze into North Korea from this vantage point. On a clear day, you might see propaganda villages.

Imjingak Park
South Korean side of DMZ
A symbolic park with monuments, the Freedom Bridge, and remnants of the Korean War.
Plans like a pro.
Thinks like you
Planning Your Visit
Book Your Tour in Advance
Tunnel Entry is Optional & Physical
Best Times
Insider Tips
from TikTok, Instagram & Reddit
Tunnel is Optional! 🚶
Don't feel pressured to enter the tunnel if you're not up for it. You can wait outside.
Wear Comfortable Shoes :athletic_shoe:
The tunnel descent is steep and can be slippery. Comfortable footwear is a must.
No Photos in Tunnel :camera_with_flash:
Photography is strictly prohibited inside the Third Infiltration Tunnel.
Book Tours in Advance 🎟️
Popular DMZ tours, especially those including the tunnel, sell out. Book ahead!
[DMZ] 3rd tunnel
Hi! So I’m going to Seoul in about a month and I’m pretty interested in the DMZ. However, I’m a quite unathletic person and don’t have much endurance, so I’m pretty worried about the 3rd tunnel exploration. How long does it last and is it really that tiring? It’s making me…
Tips
from all over the internet
Tunnel is Optional! 🚶
Don't feel pressured to enter the tunnel if you're not up for it. You can wait outside.
Wear Comfortable Shoes :athletic_shoe:
The tunnel descent is steep and can be slippery. Comfortable footwear is a must.
No Photos in Tunnel :camera_with_flash:
Photography is strictly prohibited inside the Third Infiltration Tunnel.
Book Tours in Advance 🎟️
Popular DMZ tours, especially those including the tunnel, sell out. Book ahead!
Check for Closures ⚠️
Tours can be canceled due to political tensions or events. Stay updated.
What Travellers Say
Reviews Summary
Visitors find the Third Infiltration Tunnel a profound and sobering experience, offering a tangible connection to the Korean War's legacy. While the physical challenge of the tunnel is noted, most agree it's a worthwhile, albeit optional, part of a DMZ tour. The educational value and historical significance are consistently praised, though some find the tour logistics or potential for cancellations frustrating.
"We went to the 3rd infiltration tunnel as part of our DMZ tour. As the bus takes you to the tunnel, you cross an innocuous blue line painted on the road. This marks the start of the DMZ.
At the 3rd tunnel there is large carpark with an old tank, museum and some sculptures at one end and the entrance to the tunnel at the other.
When you enter the building housing the tunnel entrance there is a photo opportunity with some much guards. You then have to deposit your mobile phones as they cannot be taken into the tunnel. You then have to collect a safety hat which turns out to be a vital piece of kit. Don’t take it off!
Now for the fun part(!) - the walk to the tunnel is 350 metres down a steep walk. Then you walk along the tunnel itself for 250 metres until the first (of three) concrete blockades; you cannot go further than the first blockade which is actually only about 170 metres from the border with North Korea.
The walk along the tunnel is quite low in many places - I am 6 foot tall and spent 80% of the 250 metre walk bent over and hit my head on the jagged roof at least a 8-10 times. I was very grateful for the hard hat.
The tunnel has a number of area with dynamite holes made by North Korea and the tunnel is a nice piece of history. But other than that, there is not much to see.
Then you have to walk back along the tunnel for 250 metres half bent over before the 350 metre steep climb back to the top. So make sure you have comfortable walking shoes and are prepared for the walk - I was reasonably ‘puffed’ by the time I reached the top and the souvenir shop."
Alex Tan
"Kudos to the management !! This place is beautifully managed. Going inside The Third Tunnel is unique exciting experience. Sports shoes are must, as you need to walk almost a mile inside the tunnel, wet surface. Outside the tunnel, there are many picturesque points to capture memories and spend quality time. Cafeteria and shopping is also available. If you are in South Korea, DMZ is must go !!!"
NARESH JINDAL
"Fascinating and intense part of the DMZ experience
The Third Infiltration Tunnel is one of the most interesting and memorable parts of any DMZ tour, a must-see if you’re exploring the area. Just a heads-up: you can’t visit on your own, so make sure to book a guided tour in advance.
The experience begins with staff giving you helmets for safety (you’ll need them!), and then you walk down a steep ramp (about 350 meters) into the tunnel itself. It’s deep underground, and the tunnel is narrow and low in places, so it’s definitely not ideal for anyone claustrophobic. The tunnel leads to a sealed-off area that was once part of a planned infiltration route from North Korea, making it historically significant and eye-opening.
Unfortunately, photos are strictly not allowed inside, so you’ll have to rely on memory, but it’s an experience that sticks with you.
The outside area is peaceful and surprisingly scenic, offering a nice contrast to the intense history underground. You can walk around, enjoy the views, and take photos here.
Highly recommended as part of a full DMZ tour.
More pics in my IG: @ogolphotos"
Gustavo Orellana
What People Like
What People Dislike
Frequently Asked Questions
🚇 🗺️ Getting There
The Third Infiltration Tunnel is part of the Demilitarized Zone (DMZ) and is best visited via an organized tour from Seoul. Most tours depart from major hotels or subway stations and include transportation. Independent travel is difficult and not recommended due to security checkpoints and limited public transport options.
Visiting the DMZ and the Third Infiltration Tunnel independently is extremely challenging and generally not feasible for tourists. Security is tight, and access is heavily controlled. Organized tours are the standard and most practical way to experience this area.
Many reputable tour operators offer DMZ tours from Seoul. Popular choices include Klook, VIP Travel, and Viator. It's advisable to compare itineraries, prices, and reviews before booking.
Half-day DMZ tours usually last around 5-7 hours, while full-day tours can extend to 8-10 hours, often including additional sites. The duration depends on the specific itinerary and travel time from Seoul.
While Munsan Station is a gateway to the DMZ area, direct public transport to the Third Infiltration Tunnel is not available for tourists. You would still need to join a tour or arrange private transport, which is complex.
🎫 🎫 Tickets & Entry
Yes, tickets for the Third Infiltration Tunnel are typically included in the price of a DMZ tour package. It's essential to book your tour in advance as these tours are very popular and can sell out.
The operating hours for the Third Infiltration Tunnel are usually part of the DMZ tour schedule. Tours typically run daily, but it's best to check with your specific tour operator for exact timings and potential closures.
While there isn't a strict age restriction, the physical demands of the tunnel (steep incline, low ceilings) might make it unsuitable for very young children or individuals with significant mobility issues. Parents should use their discretion.
Prices for DMZ tours vary depending on the tour operator, duration, and inclusions. Expect to pay anywhere from $50 to $100 USD per person for a half-day or full-day tour that includes the Third Infiltration Tunnel.
Refund policies vary by tour operator. Most reputable companies will offer a full refund or reschedule your tour if it's canceled due to unforeseen circumstances, such as political tensions or security concerns. Always check the cancellation policy when booking.
🎫 🧭 Onsite Experience
You'll descend a steep, narrow tunnel, often with low ceilings, that was dug by North Korea. It can be damp and requires physical exertion. Photography is not allowed inside.
Some visitors find the tunnel claustrophobic due to its narrowness and low ceilings. If you are prone to claustrophobia, consider opting out or turning back if you feel uncomfortable.
The tunnel involves a steep descent and ascent, with low ceilings in parts. It requires a moderate level of fitness. If you have mobility issues or are not physically active, it might be challenging.
No, photography is strictly prohibited inside the Third Infiltration Tunnel for security reasons. You will be asked to leave your camera or phone in a designated area before entering.
Common inclusions are the Dora Observatory, Imjingak Park, the Freedom Bridge, and sometimes the Joint Security Area (JSA) if available. The specific sites depend on the tour operator and current security conditions.
📸 📸 Photography
You can take photos at various points outside the tunnel, such as Imjingak Park, the Freedom Bridge, and from the Dora Observatory (though not of North Korean soldiers or specific military installations).
Yes, photography is strictly forbidden inside the Third Infiltration Tunnel and often restricted at certain viewpoints overlooking North Korea to avoid provoking military responses.
The Dora Observatory offers panoramic views, Imjingak Park has symbolic monuments, and the Freedom Bridge provides a poignant backdrop. The landscape itself is also quite dramatic.
Generally, taking photos of military personnel or sensitive military installations is prohibited for security reasons. Always follow the instructions of your tour guide.
A standard camera or smartphone is sufficient. A zoom lens can be useful for capturing distant views from the Dora Observatory. Ensure your devices are fully charged as outlets may be limited.
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Social
from TikTok, Instagram & Reddit