Drava River

The Drava River flows through five nations over a distance of 439 miles. It is the Danube's fourth greatest tributary and defines the border between Croatia and Hungary. Drave River is known as the third-longest river in Croatia.

Drava River's source is in the Puster Valley of South Tyrol/Alto Adige, Italy, near the market town of Innichen/San Candido. The river runs eastward through Austria's East Tirol and Carinthia into Slovenia's Styria region. It then turns southeast, going through Croatia and, after joining its main tributary Mur, forming the majority of the border between Croatia and Hungary before joining the Danube near Osijek.

Mute swans, black coots, tawny owls, kingfishers, and mallard ducks are common birds along the river and in its ecosystems. Along the Drava River's course, there are 22 hydropower facilities with complicated systems of locks and dams that frequently obstruct the migratory patterns of many different fish species, particularly those from the carp family.

Length: 439 miles