Samnak Ecological Park is the largest of the four riverside parks located along the banks of Nakdonggang River. Located within the Nakdonggang Estuary Eco-park's Migratory Bird Habitat (a Natural Heritage), the park is equipped with a marsh, bird feeding site, grassy fields, wildflower field, biking & walking paths, auto-camping site, water leisure town, and more aminities. The park also features more than 60 exercise machines for citizens' use.The marsh path is lined with reeds and willow trees for a beautiful and romantic walking location. The park is especially popular among bird-watchers in winter, when the migratory birds settle here to pass the cooler months.