Lake Zell

Lake Zell is a small freshwater lake in the Austrian Alps. It takes its name from the city of Zell am See, which is located on a small delta protruding into the lake. The lake is 4 kilometres long and 1.5 kilometres wide. It is up to 73 metres deep and at an elevation of 750 metres above sea level.

The lake is fed by numerous small mountain streams in summer, but only one stream flows out of it into the Salzach. In winter the lake completely freezes and is used for winter sports. In summer the lake is used for pleasure boating. The water is very clear and suitable for swimming or diving, but can be chilly.

Source: Wikipedia