Welcome to the Nakdong River Estuary Introduction Eulsukdo Island and the mouth of the Nakdong River were once famous for having one of the largest habitats for migratory birds in East Asia. (Designated as Natural Monument No.179) A vast range of reed beds, mud flats and sand dunes provided sufficient food and shelter for birds, but continuous construction and development of this area resulted in a decrease of visiting bird populations. Recently however, the natural ecosystem at the mouth of the Nakdong River has been revitalized around Eulsukdo Island. These days the most common bird to visit the area is the whooper swan (Natural Monument No. 201). More than 3,000 of these magnificent birds spend their winter on the Nakdong River. If you wish to observe the migratory birds and ecosystem of the Nakdong River more closely, you can visit the Nakdong Estuary Eco Center. The center was established to conduct research, provide information and educate the general public about the natural ecosystems of the Nakdong Estuary and to facilitate the treatment and rehabilitation of wild animals. A Multitude of Organisms inhabit the Nakdong River Estuary A wide variety of winter migratory birds can be observed in the estuary of the Nakdong River between the end of October and early March. Whooper swans, bean geese, white fronted geese, mallards and pochards are commonly observed. The most common species to visit the estuary in winter is the whooper swan (Natural Monument No. 201). More than 3,000 of these magnificent birds have been known to spend the winter on the Nakdong River, which is more than any other migratory bird habitat in Korea. As swans are large birds and spend the winter here in large groups, you will be able to spot them easily in the estuary and around Eulsukdo Island. There are also numerous species of summer migratory birds that visit between April and September, including little ringed plovers, moorhens and reed warblers. Busan Metropolitan City has monitored the ecosystem of the Nakdong River estuary all year round since 2003. The results have revealed that the number and variety of migrant birds is gradually increasing. Only 94,000 birds from 114 species were counted in 2003, but in 2015, the numbers had risen to 210,000 birds from among 159 different species. Nakdong River Estuary Eco Center and Eulsukdo Island Eulsukdo Island is divided into two sections, with the weir of the Nakdong River Estuary in the middle. Eulsukdo Eco park, Water Cultural Hall (K-water), a sports Park and an outdoor car theater are located in the northern half, while the Nakdong River Estuary Eco Center and Eulsukdo migratory bird park are located in the southern half. If you wish to observe the migratory birds and ecosystem of the Nakdong River more closely, you can visit Nakdong Estuary Eco Center and Eulsukdo migratory bird park. The Nakdong Estuary Eco Center (1,907,000㎡) is located within the Eulsukdo migratory bird park, which was opened in June 2007. The three-story building on a 4,075㎡-site was designed by Yamashita Yasuhiro, who was selected through a public competition. The center was established in order to preserve and maintain the Eulsukdo migratory bird park, display, guide, educate and conduct research into the natural ecosystem of the estuary and treat and rehabilitate wild animals. In the second floor exhibition room there is a detailed explanation of the history and formation of the estuary, as well as displays featuring taxidermied migratory birds that can be found in the area. This center stands out from other exhibition halls in terms of the variety of indoor and outdoor experience programs it offers. Examples of indoor programs include observing birds and comparing the feathers and beaks of different bird species. Outdoor ecology experience programs include field trips to the mouth of the river, the mudflats and the reeds, as well as insect observation and bird watching. The Wild Animal Treatment Center is also located in the Nakdong Estuary Eco Center.