The Plitvice Lakes National Park (in Croatian Nacionalni park Plitvička jezera) is located in Croatia, in the mountain complex of Lička Plješivica, in an area of dense forests, rich in streams, lakes and waterfalls. For nature lovers this place is perfect, there are walking routes (from 2 to 8 km) immersed in an overwhelming natural environment.
The park occupies an area of 33,000 hectares and includes 16 lakes in succession, connected by waterfalls. Inside the park there are also numerous caves of which only a small part is accessible. The woods of the park are populated by 157 species of birds, 50 of mammals, 321 of lepidoptera (76 of butterflies and 245 of moths) and other animals, including the brown bear, the wild boar, the wolf, the lynx and the roe deer. The lakes are formed by two rivers: the White River and the Black River, which flow into the Korana River. The waters of these rivers are rich in calcareous salts (mostly calcium carbonate and magnesium carbonate), coming from the dissolution of the carbonate rocks constituting the geological structure of the site.