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.
Transport in Germany
Waterways: 7,467 km (2013); major rivers include the Rhine and Elbe; Kiel Canal is an important connection between the Baltic Sea and North Sea and one of the busiest waterways in the world, the Rhine-Main-Danube Canal links Rotterdam on the North Sea with the Black Sea. It passes through the highest point reachable by ocean-going vessels from the sea. The Canal has gained importance for leisure cruises in addition to cargo traffic.