[2] Since the convention became effective in Poland on 22 March 1978, the designation of Wetland of International Importance has been applied to thirteen locations in the country, which combine to form an area of 145,075 ha (358,490 acres).
[3][4] The site consists of a series of temperate zone forested and non-forested bogs that provide a variety of habitats for birds, mammals, fish and plants.
[5][4] The bogs themselves support an extensive algal community while the surrounding area consists of dwarf Mountain pine (Latin: Pinus mugo) and low-growth vegetation.
[4] The ponds provide important spring and autumn migration habitat for a variety of geese, ducks and other waterbirds.
[3] The areas consists of boreal Scots pine (Latin: Pinus sylvestris) forests, black alder (Latin: Alnus glutinosa) wetland forests, meadows and peatbog (raised bog, transitional bog and fen) ecosystems.
[3][4] The site consists of set of dunes, brackish lakes, bogs, and wetland forests on the southern Baltic Sea coast between Łeba and Rowy, Poland.
[5][4] The coastal aeolian processes have produced some of the most extensive and active mobile sand dunes, which can reach 30 m (98 ft) high, on the Baltic Sea.
[3] Coastal erosion and other geo-morphological processes lead to the creation of sand-bars, forming brackish lakes and bogs.
[3] The area consists of a series of vegetation zones going from the sand communities of the coastline towards the forests of the mainland.