View from the southern shore of the Herzberger See to the north. The Herzberger See is a lake in in the village Herzberg, a part (german: Ortsteil) of the municipality Rietz-Neuendorf in the District Oder-Spree, Brandenburg, Germany. The lake covers 13 hectare. The long-drawn groove lake is the most northern water of a five-part chain of lakes, which is connected by the Blabbergraben. The Blabbergraben drains the lakes to the south into the river Spree.