National Park Plitvice Lakes
The largest and, at the same time, the oldest national park has been on the list of UNESCO World Heritage Sites since 1979, and it was declared a national park in 1949. It occupies the area of 19479 hectares immediately by the road connecting the continental Croatia with the coastal. The basic phenomenon of the park is the particular way of forming travertine as the consequence of interaction between physical and biochemical water characteristics, climatic conditions and undisturbed natural balance. In the park there are 16 lakes in a cascade. Due to the differences in natural features they are divided into Upper (12) and Lower Lakes (4). Upper Lakes are on a dolomite bed, they are deep and possess lush vegetation, while Lower Lakes are on a calcareous bed, they are shallower and possess a little less lush vegetation. The lake with the highest elevation is Prošćansko Lake (at 639 m), and the lake with the lowest elevation is Novakovića brod (at 503 m). Due to the growth of travertine, the lakes in the park change constantly in their depth, size, colour and even in their number. According to the Legend the lakes emerged during the time of great drought in this area and the people were praying for rain. Black Queen arrived then, took pity on the people and brought the rain. The rain was falling for such a long time so that the lakes were formed.