Ui-dong Mannamui Gwangjang is a city park at the trailhead for the Bukhansan Ui-dong route in Gangbuk-gu, Seoul. It has a walking loop for exercise, along with exercise equipment and a small playground. The park is the starting point for the hike to the Baegundae summit of Bukhansan, with a stream running through it and clean air. The route near the summit includes a steep, difficult section, so hikers should check the trail before setting out.