Dzūkija National Park is a national park in Dzūkija, Lithuania, located 100 kilometers southwest from the capital, Vilnius, and 100 kilometers south from Kaunas. It was established on April 23, 1991 by the Supreme Court of the Republic of Lithuania. The park was established to protect and manage the territories of the Dainava land. The park mainly consists of marsh areas, lakes, rivers, swamps, inland dunes, and mountain-ridges and is the country's most extensive and protected forest. The national park encompasses 584.53 square kilometers on the banks of the Nemunas River.