The Upper Pond is a large artificial pond in northern Kaliningrad, Russia. It was known as the Oberteich while part of Königsberg, Germany, until 1945.
The pond is elevated 22 metres above the Pregel River and encompasses 41.1 hectares. Freshwater life living in the Upper Pond include perch, roach, carp, tench, pike, and eels. Located near the water is the Kaliningrad Amber Museum.
Wikipedia https://en.wikipedia.org/wiki/Upper_Pond_(Kaliningrad)
Address 69 Курортная улица, Калининград, Russia
Coordinates 54°43'35.564" N 20°31'12.738" E