Economy of Hungary and the Tisza. The Danube also flows through parts of Germany, Austria, Slovakia, Serbia, and Romania. It is navigable within Hungary for 418 km. The Tisza River is navigable for 444 km in the country. Hungary has three major lakes. Lake Balaton, the largest, is 78 km long and from 3 to 14 km wide, with an area of 592 km. Lake Balaton is Central Europe's largest lake and a prosperous tourist spot and recreation area. Its shallow waters offer summer bathing and during the winter its frozen surface provides facilities for winter sports. Smaller bodies of water include Lake
Lake Skadar waters may have provided its first species and been the basis for its present high degree of endemism. The Lake Skadar system is a well-known hotspot of freshwater biodiversity and harbors a highly diverse mollusc fauna. Lake Skadar is one of the largest bird reserves in Europe, having 270 bird species, among which are some of the last pelicans in Europe, and thus popular with birders. The lake also contains habitats of seagulls and herons. It is abundant in fish, especially in carp, bleak and eel. Of the 34 native fish species, 7 are endemic to Lake Skadar. At the