For two-thirds of its course this virginally pure karstic river, with its seven magical waterfalls and which rises near the town of Knin, flows through canyons. The area is exceptionally rich in endemic flora and fauna, containing 222 types of bird. The watermills along the rivers and above the waterfalls, ruins of fortifications rising above the canyons, the picturesque mouth of the River Čikola above Skradinski buk waterfall - all are specific features of the river landscape. The Krka’s estuary, the 23.5 km-long Lake Pruklja, which reaches up to Skradinski buk is rich in shellfish, freshwater and saltwater fish. Sitting in Lake Visovac, between Roški slap and Skradinski buk (13 km) waterfalls, is a tiny island upon which, set amid a park of sylvan charm, is a Franciscan monastery with a long history. The Krka Monastery (Arhanđelovac) is located in the area of Kistanje, at the point where the canyon widens. The quiet river and lakes are ideal for canoe and kayak tours, but for which it is necessary to obtain a special permit.