At 629 meters in x_height, Gwanaksan Mountain is the symbol and pride of Gwanak-gu district in Seoul. Most of the cultural heritages of the district originate from Gwanaksan Mountain. Since it was designated as a city natural park in 1968, it has continued to serve as a favorite place for relaxation and excursion for Seoul citizens. The various rocky peaks and the deep valleys give the mountain a rugged feel. The mountain's size and close proximity to Seoul make it easy for Seoul residents to visit in a single day. In the spring, cherry blossoms are in full bloom near the entrance to the mountain, and a Rhododendron Festival is held when the rhododendrons are in full bloom. At the mountain's summit are Wongaksa Temple and Yeonjuam Hermitage, which were built by Taejo Yi Seong-gye (the founder of the Joseon Dynasty) to ward off misfortune when he decided to move the capital to Seoul. There are also other temples and hermitages, and a ground radar observation post. Yeonjudae Hermitage, located atop a cliff, is where all the hiking trails of Mount Gwanaksan meet.