The Slovinski National Park was established on 1 January 1967. In 1977 it was recognised by UNESCO as a World Biosphere Reserve.
The main tourist attraction of the Park are the moving dunes, whose very fine sand, under the influence of the wind, migrates eastwards at the rate of 3-10 metres per year, covering the forests encountered. Ecosystems make up 55% of the total area. The largest dune field is about 500 ha and the largest dunes reach up to 42 metres. Łącka Mountain is the most attractive of all the dunes in the SNP area. It is 42 m high, from its top one can admire a beautiful panorama of the Łebsko Spit, and on its southern side a dead buried forest is exposed.