Against the summer heat: These lakes are real insider tips

Among the more than 12,000 lakes in Germany there are some that are less well known but no less recommendable. Hopfensee: The warmest lake in the foothills of the Alps is beautifully embedded in the Allgäu mountain landscape. An artificial Kneipp island invites you to tread water. Eibsee: The Zugspitze is reflected in the crystal-clear water. Eight small islets shine out with bright beaches. Even in midsummer, the water temperature of around 20 degrees is perfect for cooling off