The 4th Tunnel in South Korea

The 4th Tunnel in South Korea is an interesting site to visit. It was discovered on March 3, 1990. It is located 1,200m from the Military Demarcation Line in the demilitarized zone of South Korea. This is the only tunnel which has a tour train in the tunnels that has been discovered. The tunnel is located at Hyeon 3- ri, Haeahn-myeon in Yanggu-gun.

Features of The 4th Tunnel in South Korea

  -   The 4th Tunnel in South Korea was unearthed in quite a dramatic manner.
  -   Three tunnels were already discovered since 1974 with the third being uncovered in 1978.
  -   After detecting the sound of underground motors in May of 1989, the Army started excavation work using state-of-the-art reconnaissance devices developed by the Korean Institute for Science and Technology.
  -   Electric waves were sent through antennas which were put through excavation halls driven every 20 meters.
  -   After analyzing the transformation of the waves, the army was able to detect the tunnel's location as well as determine its size.
  -   Twenty three days after they started digging, the counter-tunnel reached the North Korean tunnel.
  -   Forty five Korean and foreign journalists were present at the site of discovery of the fourth tunnel on March 3, 1990.
  -   It is located 26 km northeast of Yangku.
  -   The tunnel is 145 meters below the surface and is 2,052 meters long.
  -   The tunnel has the capacity transiting of some 30,000 soldiers per hour.
  -   Educational instruction is given in the square outside the tunnel.
  -   You can take a city-bound bus from Yanggu Bus Terminal for Haeanmaeul Village and get off at Haeanmaeul Village after a 1hr ride. Or you can conveniently take a cab from Yanggu Bus Terminal to the North Korea Hall.
  -   Visitors are allowed from 9:00 hrs to 16:00 hrs during November to February and 9:00 hrs to 17:00 hrs during March to October. Visitors are not allowed to enter during the lunch time from 11:30 hrs to 13:00 hrs.