The Lower Nakdonggang River Seasonal Bird Migration Site was designated as a natural monument on July 13th, 1966, and it has a large river-mouth, sand dunes, delta, Ilungdo Island, Eulsukdo Island and other surrounding islands. The snipes and waterfowls stop by when they pass Korea during the fall and spring, and the ducks and geese find their way here in the winter. This area, where the Nakdonggang River (낙동강) and the South Sea meet, has over 150 species of birds, which visit between October and March. You're most likely to see swans, and even raptorial species like eagles and white-tailed eagles. It is a large area with thick groves of reeds, which make it hard to approach by land. In order to watch migratory birds, you should take a boat from Myeongji-dong harbor and get a local guide to help you. The ideal time for bird watching is between 9am and 4pm.Eulsukdo Island (을숙도) is one of the places you absolutely cannot miss. It is a delta island, and is well known as a paradise for over a hundred thousand birds. It is an amazing sight to see some ultra-rare species of birds like the white-naped cranes, the blackfaced spoonbills, and the white-tailed eagles, as they arrive and spend the winter.