Grunewaldsee, Lake in Charlottenburg-Wilmersdorf, Berlin, Germany

Grunewaldsee is a lake in the Steglitz-Zehlendorf district surrounded by the Grunewald forest and dense woodland vegetation. The water forms a natural basin with numerous hiking trails and observation points positioned around its shoreline.

The lake takes its name from Jagdschloss Grunewald, built in 1542 under Elector Joachim II and considered Berlin's oldest castle and sole witness of the Berlin Early Renaissance. Its sandstone plaque and stag relief above the door still name the house "Zum Grünen Wald". The lodge was remodelled in Baroque style under Frederick I, completed in 1708, and became a museum after the Grunewald court hunt was abandoned in 1904.

The lake and surrounding forest draw photographers and nature lovers who document the changing seasons and local wildlife throughout the year. Visitors experience the natural rhythm of the forest and can observe how people use the space for quiet reflection and connection with nature.

Swimming has been prohibited since 2004, but visitors can walk and explore the area throughout the year in most weather conditions. The pathways circling the water are accessible for casual strolls and offer several spots to pause and observe the surroundings.

The water supports a significant population of bird species that can be observed with binoculars, especially during migration seasons. This abundance of wildlife makes it a favorite destination for bird watchers and those seeking to observe nature closely.