Polesie National Park (Polish: Poleski Park Narodowy) is a National Park in Lublin Voivodeship, eastern Poland, in the Polish part of the historical region of Polesie. Created in 1990 over an area of 48.13 square kilometres, it covers a number of former peat-bog preserves: Durne Bagno, Jezioro Moszne, Jezioro Długie, Torfowisko Orłowskie. In 1994 its size was augmented by the addition of Bagno Bubnów, a swampy terrain adjacent to the park. Currently, the park occupies 97.62 km2 (37.69 sq mi), of which forests make up 47.8 km², and water and wastelands 20.9 km²

https://en.wikipedia.org/wiki/Polesie_National_Park