Sacrower See und Königswald, Protected natural area in Potsdam, Germany.

Sacrower See und Königswald is a protected natural area in Potsdam featuring a freshwater lake surrounded by extensive forests of pine and mixed oak trees. The landscape includes shoreline zones marked by reed beds and woodland that extends across rolling terrain.

The area gained protected status in 1941, marking one of the earliest conservation efforts in Potsdam. The presence of a Bronze Age fortification shows that the landscape has held significance for human settlement since ancient times.

The name Römerschanze is misleading: the Bronze Age rampart, also called Königswall, has no connection to the Romans. It lies in the west of the Königswald, 19 metres above the shore of the Lehnitzsee on a spur of land. The forest also holds the replacement house for the Forsthaus Zedlitz, which burned down in the 1930s.

The reserve lies northeast of Potsdam, between the Jungfernsee, the Havel coming from Berlin and Groß Glienicke, and covers 801.5 hectares. The Sacrower See sits entirely within it, ringed by pine and mixed deciduous forest. Paths are forest tracks; wear sturdy shoes, as they are uneven and slippery when wet.

The Römerschanze, also called Königswall, is a Bronze Age rampart on a spur 19 metres above the Lehnitzsee shore in the west of the Königswald. Its name is misleading: the site has no connection to the Romans. The forest also holds the replacement building for Forsthaus Zedlitz, which burned down in the 1930s.