At the foot of the mount Dinara, in the eastern part of the Knin field, it cuts its way through the narrow canyon and flows into the Adriatic sea at the Šibenik port. With the sunken part of its mouth its length is 72km. For its great natural, scientific and cultural value, it was proclamed The National Park in 1985. Its area abounds in the traces of the ancient settlements. The oldest traces date back to the Stone Age.
At its right bank, from Skradin towards the waterfalls, there are the remains of the Roman aqueduct built for the ancient Scardona and in the surrounding area there are few ruins of the Old-Croatian fortresses from the 14th ct. The jewel of the National Park is definitely the islet of Visovac situated in the middle of the Visovac lake formed by the river Krka. On the islet there is a Franciscan monastery which is a valuable cultural and historical monument. It was first mentioned in 1400 and ever since it has been a keeper of the historical documents from the past centuries. Even nowadays on the islet is a school for the young Francicans.
Other important religious monument is the orthodox monastery of St.Archangel’s, first time mentioned in 1402. It keeps valuable book, icons, manuscripts and some church vestments. The river Krka has seven lime barriers among which the best known is Skradinski buk, 45.7m high and Roški slap, 25.5m high. This aboundance in water results in rich vegetation so that along its course some 200 species of the Mediaterranean and Sub-Mediterranean plants can be found. Krka is one of the most beautiful and most popular excursion area in Dalmatia. Each year thousands of visitors come by boat from Skradin or by road towards Drniš to the two entrances, in Lozovac and at the Roški slap.