Yeonhagyegok Valley is a naturally formed recreation area located on Eungbongsan Mountain. It is widely known as a summer retreat due to its unique natural environment, such as cool water and dense forests that provide shade facing the valley. The valley is impressive for its clean stream flowing down from the dense forests of the mountain, and for its simple appearance that preserves hidden scenic spots, such as Yeonhapokpo Falls and Yongsopokpo Falls, despite their small scale.