Baegak Trail
Running through Bugaksan mountain, the Baegak Trail begins and ends at two minor gates of the Seoul City Wall, from Changuimun to Hyehwamun. The trail reaches a height of 342 meters (1,122 feet) and takes about three hours to complete. The trail has a lot of history: it's where North Korean Special forces infiltrated Seoul in 1968. As a result of this history, visitors to the area are required to bring identification in order to enter. Highlights of the trail include the January 21 Incident Pine Tree, a tree with traces of bullets fired during a gunfight with North Korean forces, and Malbawi Observatory, a scenic viewpoint from which both Seongbuk-gu and Jongno-gu are visible.