Lake Balaton Lake Balaton Lake Balaton ( , , ) is a freshwater lake in the Transdanubian region of Hungary. It is the largest lake in Central Europe, and one of the region's foremost tourist destinations. The Zala River provides the largest inflow of water to the lake, and the canalised Sió is the only outflow. The mountainous region of the northern shore is known both for its historic character and as a major wine region, while the flat southern shore is known for its resort towns. Balatonfüred and Hévíz developed early as resorts for the wealthy, but it was not until
Petenwell Lake northern pike, bass, panfish, and muskellunge. The area around the lake has restaurants, a community theater, a golf course and two casinos. Lake Petenwell has blue-green algae blooms in the summer, the toxicity of which is unknown. The algae, which exists naturally in most lakes, is magnified on Lake Petenwell as a result of industrial and agricultural sources upstream. Petenwell Lake Lake Petenwell is a man-made lake in central Wisconsin, in Adams, Juneau, and Wood counties next to Castle Rock Lake. It covers over and is deep. Lake Petenwell is Wisconsin's second largest lake at or approximately . It was