The river Krka (75 km) has specific meaning for the counties total economy, especially in tourism. Krka is a phenomenal rocky lime ground, which has unique cascade like canyons that created a natural beauty with miraculous formations of tuff barriers. Great tourist attractions are the Roški Slap (waterfall), the Visovac Lake and the little island of Visovac on which the Franciscan monastery St. Archangel is located, the restored mills, the stamping mills and ethno-collection.

A section of the course of the Krka, from Knin to Skradin was pronounced a national park in 1885 due to its exceptional nature and scientific and cultural historic value.