The original idea of creating a preserve here was floated in 1946, at a conference in Łeba with scientists from Poznań and Gdańsk.

[2] The park is named after the West Slavic (later Germanized) people known as the Slovincians (Polish: Słowińcy), who used to live in this swampy, inaccessible area at the edge of Lake Leba.

In the village of Kluki, there is an open-air museum presenting aspects of this people's former life and culture.

As waves and wind carry sand inland the dunes slowly move, at a speed of 3 to 10 metres per year.

The highest peak of the park – Rowokol (115 metres (377 ft) above sea level) – is also an excellent observation point.

The most interesting species are: erne, eagle owl, crow, swan and various kinds of ducks.