At the heart of the city lies an enchanting oasis, the Außenalster, an artificial lake in central Hamburg surrounded by ancient trees, picturesque parks and the opulent mansions of the Winterhude, St. Georg and Rotherbaum districts. The lake regularly draws inhabitants to its shores for recreational activities, including sailing, rowing, canoeing, stand-up paddling, and kayaking, while the surrounding 7km circuit is a hotspot for jogging, cycling and skating.