Socialist Federal Republic of Yugoslavia
Regarding rivers, the Danube was navigable throughout its entire course in Yugoslavia, linking the ports of Belgrade, Novi Sad, and Vukovar with Central Europe and the Black sea. Long stretches of rivers Sava, Drava and Tisza were also navigable.
Spitz, Austria
Spitz an der Donau is a market town in the district of Krems-Land in the Austrian state of Lower Austria, in the midst of the UNESCO World Heritage area Wachau, further down from Willendorf on the left bank of the Danube. The ferry across the Danube here is interesting in that it has no motor or sail: it is powered by rudder set against the river current, anchored to a cable above the river. The ferry carries passengers, bicycles, motorcycles, and automobiles.