In the vicinity of the thousand-year-old town of Šibenik on the upper and the lower flow of the Krka River and on the lower flow of the Eikola River on the territory of the Šibensko-Kninska County a national park called ” Krka” is situated on an area of l09 sq. km being the youngest park in Croatia. The Krka River rises from a spring in the foothill of the Dinara Mountain near Knin. With flooded part of its estuary its length is about 72 km. The total area of its river-basin amounts to 2.088 sq.km. With its seven cascades being Bilušiaa buk, Eoriaa buk or Brljan, Manojlovaeki slapovi, Rošnjak, Miljacke slap, Roški slap i Skradinski buk (l7 steps of the total height of 45,7 m) and with its total fall of 242 m the Krka River is a natural and Karst phenomen. The basic phenomen, for the sake of which it has been declared a national park , is the tuff i.e. the limestone sedimented from water which is continuously building limestone thresholds, covers, beards, curtains or other shapes.The area of the Krka River abounds in the traces of the ancient presence of population as well as in numerous historical and cultural monuments.Within the region of this national park there are also the ruins of several medieval old Croatian fortifications dated from the l4th century such as Trošenj-grad, Neeven-grad , Bogoein-grad and Kljueica, which is according to its sizing and the preserved condition one of the most important fortification buildings in Croatia. Among numerous sacral buildings the most precious stones within the region of this national park are a Franciscan church and a monastery on the islet of Visovac as well as an Ortodox monastery called “Krka (St. Archangel) with its precious artistic and cultural treasure.