Unaksan National Recreational Forest (국립 운악산자연휴양림)

Unaksan Mountain rises 934.7 meters above sea level. Oddly shaped rocks and peaks make the landscape particularly beautiful. Historical relics from the Later Goguryeo period, including the site of a fortress for Gung Ye (the first king of the short-lived Later Goguryeo state) can be seen on the mountain. Majestic peaks surround Mangyeongdae, the main peak, and forests of broad-leaved trees turn striking colors in the fall.

The trails are beautiful with purple magnolias in mid-April and azaleas and mountain magnolias in May. The Unaksan Mountain Autumn Leaves Festival is held in mid-October every year as the leaves begin to turn. Together with Gwanaksan, Chiaksan, Hwaaksan, and Songaksan Mountains, Unaksan Mountain is one of the five most rugged mountains in the Central region and a popular one.