Gungdong Reservoir Ecological Park is a small ecological park next to the Gungdong bus stop in Guro-gu, Seoul. From the wooden deck over the reservoir, visitors can see carp, crucian carp, and lotus flowers, and walk a loop trail around the water. The site was reorganized from a former paid fishing spot, and outdoor movies are shown every Thursday. It also has a children's library, a playground, exercise equipment, and restrooms, though the park is small and split in two by a road.