It is one of the five national parks in Lithuania. It was founded in 1991 and covers the Lithuanian part of the Curonian Spit, inscribed on the UNESCO World Heritage List, and the adjacent area of the Baltic Sea and the Curonian Lagoon. The park also belongs to the protected Natura 2000 network.
The main part of the park is the area of dunes and old coastal pine forests. The dunes can be seen from the viewing platform built by the Parnidis dune. In total, about 900 species of plants grow in its area, including 31 entered into the Lithuanian Red Book, which is a list of endangered species.
The park is home to a very large colony of cormorants and gray herons, totaling approximately 1500 pairs. You can also meet deer, elk, badgers, beavers, otters, muskrats and weasels. Sometimes gray seals come to the park.