In the location's words:

The Großer Seddiner See, located in the southern outskirts of Berlin, is a treasure for those seeking relaxation. Nestled in a picturesque landscape of rolling hills and dense forests, the lake offers a tranquil atmosphere far away from the hustle and bustle of the city. The clear water is ideal for swimming, sailing and fishing, while the surrounding hiking and cycling trails are perfect for relaxing excursions. With its well-kept bathing areas and idyllic picnic spots, the Großer Seddiner See is the perfect destination for a relaxing day in nature. Here you can unwind and recharge your batteries.