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Tap or click above images one by one for more details↑
You can see North Korea side just beyond these tourists↑
Cross-sectional diagram of Infiltration tunnel in DMZ.↑
So far 4 infitration tunnels were found out from 1974 ~ 1990 in DMZ.
Above map is the 3rd tunnel which was found out on 1978. Left is North Korea, Right side is South Korea.
Left side, North Korea is 3 degree low than Right, South Korea side.
The reason why, underground water comes out naturally when they dig the underground.
Otherwise, You guess reverse situation, they couldn’t keep dig the underground on due to underground waters.
South Korea military authority try to found out underground infiltration tunnels roughly 20 times,
but we found out 4 underground tunnels so far.
