Route: Seoul Trail Course 8: Bukhansan National Park / 서울둘레길 8코스-북한산코스 (South Korea)

Seoul Trail is a 157km-long trail surrounding the whole city, and has eight courses. Course 8 is the longest of the eight courses, and runs through Bukhansan National Park, one of the most famous national parks in South Korea. The section has beautiful scenery, deep forest, as well as historical POIs, including the old city wall of Seoul. While the trail follows the bottom of Bukhan mountain, the mountain itself is among the most frequently hiked in the country. 

http://english.seoul.go.kr/life-information/natural-attractions-parks/seoul-trail/01-seoul-trail/

http://morningcalmtravel.com/seoul-dulle-gil-stage-8#.XxFb020zbIU