DMZ, or Demilitarized Zone, is a 4-km wide zone, 2 km from each side of the Military Demarcation Line, an actual border between the North and South Korea.

This zone, which is situated roughly along the 38th parallel, is probably the most heavily garded border in the world, since both states are actually in the state of Armistice singed in 1953. It is one of the most popular tourist locations too, as it represents one of the 20th century's tragedies of devided states.

This tour includes:

Dorasan Observatory, from where you can see the North Korea's city of Gaeseong
visiting 3d infiltration tunnel
Imjingak recreation zone situated near the border of South and North Koreas
the guide will tell you in detail of the course, bakcground, and consequences of the Korean War

DMZ: 3d tunnel, Dora observatory, Imjingak