The Bukhansan National Park in Seoul and Gyeonggi covers an area of 79.92 km2 and was established on 2 April 1983. Bukhansan means "mountains north of the Han River."
The park contains forested areas, temples and granite peaks. The three main peaks are Baekundae, 836.5 m, Insubong, 810.5 m and Mangnyeongdae, 799.5 m. Due to its popularity with hikers and Seoul residents, some trails are closed on a rotation basis to protect the local environment.
The Bukhansanseong Fortress is located in the park, together with its 9.5 km long defensive wall. A fortress was first built on this site in 132 AD to protect Seoul from foreign invasions, and it was expanded to its current size in 1711.
Wikipedia https://en.wikipedia.org/wiki/북한산국립공원
Official Website http://bukhan.knps.or.kr/main/main_park_bukhan.do
More information on knps.or.kr http://english.knps.or.kr/Knp/Bukhansan/Intro/Introduction.aspx
Email pukhan@knps.or.kr
Phone +82 2 909 0497
Coordinates 37°40'15.55" N 126°59'28.109" E