(German, 'Devil's Lake') is a

glacial lake A glacial lake is a body of water with origins from glacier activity. They are formed when a glacier erodes the land and then melts, filling the depression created by the glacier. Formation Near the end of the last glacial period, roughly 10, ...

in the

Grunewald forest Grunewald () is a German forest located in the western side of Berlin on the east side of the Havel, mainly in the Grunewald locality. At it is the largest green area in the city of Berlin. Geography The forest occupies, on the western side, 3 ...

in the

Berlin Berlin is Capital of Germany, the capital and largest city of Germany, both by area and List of cities in Germany by population, by population. Its more than 3.85 million inhabitants make it the European Union's List of cities in the European U ...

borough of

Charlottenburg-Wilmersdorf Charlottenburg-Wilmersdorf () is the fourth borough of Berlin, formed in an administrative reform with effect from 1 January 2001, by merging the former boroughs of Charlottenburg and Wilmersdorf. Overview Charlottenburg-Wilmersdorf covers the w ...

. The

European bitterling The European bitterling (''Rhodeus amarus'') is a temperate freshwater fish belonging to the subfamily Acheilognathinae of the family Cyprinidae. It originates in Europe, ranging from the Rhone River basin in France to the Neva River in Russia. ...

, classified as "very vulnerable" in Germany can be found in the lake; fishing is prohibited by law.

Nude bathing Nude swimming is the practice of swimming without clothing, whether in natural bodies of water or in swimming pools. A colloquial term for nude swimming is ''skinny-dipping''. In both British and American English, to swim means "to move through ...

is permitted at the lake as in many parts of Germany.

References

Charlottenburg-Wilmersdorf Glacial lakes of Germany Lakes of Berlin Protected areas of Berlin {{Berlin-geo-stub