Nature park is a large natural or partly cultivated area of land and/or sea distinguished by ecological features of international and national importance with marked landscape, educational, cultural-historical and tourist-recreational values.
Business and other activities and actions which do not pose a threat to its essential characteristics and roles are permitted. The method of performing business activities and use of natural resources in nature parks are set out in nature protection requirements.
Out of 11 nature parks, 6 are mountain parks: Velebit, Biokovo, Medvednica, Papuk, Učka and Žumberak-Samoborsko gorje while Telašćica and Lastovsko otočje are island parks. Kopački rit and Lonjsko polje are representatives of the biological wealth of lowland flooding areas and Vransko jezero is the largest natural lake in Croatia.
Lastovsko otočje (Lastovo archipelago) belongs to the outer group of islands in south Dalmatia and includes the island of Lastovo with neighbouring islands, island groups Lastovnjaci and Vrhovnjaci and island Sušac, consisting of the total of 44 islands, islets and reefs.
The Nature Park Lonjsko polje is the largest protected flooding area of the entire Danube river basin with valuable landscape and ecological features. Special beauty of landscape is provided by flood forests of common oak and picturesque wet pastures with old dwellings in between a network of water surfaces.