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
Balaton Sound sets new attendance records yearly. The first Balaton Sound festival was held between 12 July and 15 July 2007. The fact that the event was held on the shore of the largest lake in Central Europe in mid-summer, its twenty-hour music schedule, and the line-up gained it significant public interest. The festival is located on the west part of Zamárdi at the crossing of Panoráma and Zöldfa utca (street). Inside the festival area variable stages, lounges, and tents are established for the performances.The sponsors of the festival create luxurious chill-out facilities with hammocks, bean bags, easy chairs. Visitors to Balaton