Pferdekoppel is the northern Groß Glienicker See entry in Berlin, used for easy freshwater training and relaxed lake dives. The site combines a sandy public bathing area with a lake route that can run back past the harbour, so it works best as a simple, fish-rich freshwater dive rather than a high-adrenaline site. Plan for ordinary lake visibility, seasonal crowds, and sharing the water with anglers and other users.