South and North Korea DMZ, 3rd Infiltration Tunnel and Border

A sneak peek at South Korea’s DMZ (Demilitarized Zone), including the Third Infiltration Tunnel – one of the number of tunnels allegedly built by the North for a potential underground invasion – and across the border into North Korea. (These are not the famous blue houses of Panmunjeom – we didn’t make it there because visits require advanced reservation).