Situated in Paju-si, Gyeonggi-do and at the northernmost point of the Military Demarcation Line, Dora Observatory replaced the previous Songaksan Observation Post. From the observatory, visitors can overlook North Korea, including Gaeseong, Songaksan, Kim Il-Sung Statue, and Cooperation Farm (Geumamgol). The observatory has 500 spectator seats, a VIP room, and a large parking area. It was first opened to the public in January 1987.

Near the observatory is The 3rd Tunnel, an infiltration tunnel built by North Korea and found in 1978. It stretches over 1.6 kilometers with a x_height and x_width of 2 meters, capable of mobilizing 30,000 troops in one hour. In front of the tunnel are a variety of attractions such as the DMZ Media Hall (offering the history of the divided country and flourishing ecosystem in the Demilitarized Zone), DMZ Exhibition Hall (displaying relics and documents related to the Demilitarized Zone), sculptures, and souvenir shops. Visitors can see inside the tunnel by either walking or riding the monorail.

Because civilian access is restricted in this area, visitors must participate in the DMZ Peace & Security Tour Program to visit the observatory.