Forggensee

The Forggensee, also called the Roßhaupten Reservoir, is a reservoir located north of Füssen in the county of Ostallgäu in Bavaria, Germany and one of many lakes in the region around Hohenschwangau and Neuschwanstein castles. With a surface area of 15.2 km2, it is the fifth-largest lake in Bavaria and the largest reservoir in Germany by area. The River Lech flows through it. The Forggensee is known primarily as a tourist destination for aquatic sports and recreation. Besides Füssen, other settlements on the lake include Halblech, Rieden am Forggensee and Roßhaupten. The lake takes its name from the former hamlet of Forggen which has been submerged by the reservoir.

Source: Wikipedia