The Krka National Park is a spacious, largely unchanged region of exceptional and multifaceted natural value, and includes one or more preserved or insignificantly altered ecosystems.
It is intended primarily for scientific, cultural, educational, recreational, and tourism activities such as visiting and sightseeing.
It was proclaimed a national park in 1985 and is the seventh national park in Croatia. The Krka National Park is located entirely within the territory of Sibenik- Knin County and encompasses an area of 109 square kilometres along the Krka River: two kilometres downriver from Knin to Skradin and the lower part of the Cikola River. From the flooded part of the mouth, it is 72.5 kilometres in length, making the Krka the 22nd longest river in Croatia.
The source of the Krka River is at the base of the Dinaric Mountains, 3.5 kilometres northeast of the base of Knin and 22 meters below Topoljski Slap, Veliki Buk and Krcic Slap, which are noisy cascades in the winter but run dry during the summer. The length of the freshwater section of the river is 49 kilometres and that of the brackish section is 23.5 kilometres. Significant tributaries of the Krka River include Krcic, Kosovcica, Orasnica, Butisnica and Cikola with Vrb.
With its seven travertine waterfalls and a total drop of 242 meters, the Krka River is a natural and carstic phenomenon.