The Korean Demilitarized Zone (DMZ) is a strip of land running across the Korean Peninsula. It is established by the provisions of the Korean Armistice Agreement to serve as a buffer zone between the Democratic People's Republic of Korea (North Korea) and the Republic of Korea (South Korea). The demilitarized zone (DMZ) is a border barrier that divides the Korean Peninsula roughly in half. It was created by agreement between North Korea, China and the United Nations in 1953. The DMZ is 250 kilometres (160 miles) long, and about 4 kilometres (2.5 miles) wide.
https://en.m.wikipedia.org/wiki/Korean_Demilitarized_Zone
Inside the DMZ, near the western coast of the peninsula, Panmunjom is the home of the Joint Security Area (JSA).
Travel to the Korean Demilitarized Zone (DMZ) and the Joint Security Area (JSA) to see the border that divides North and South Korea on this guided, full-day adventure from Seoul.
Learn about the role of the DMZ and JSA from the time of the Korean War to modern day. Visit Imjingak Park, the DMZ Museum, the Third Infiltration Tunnel, the Freedom House, the Bridge of No Return and much more. Plus, look across the DMZ into North Korea from the Dora Observatory.