The “counterpart” to the Strandperle in Övelgönne: The Alsterperle is located on the eastern-most tip of the Außenalster and offers good snacks at civil prices.
The special thing about this location is of course the perfect view from here: The widest point of the Alstersee. Looking towards the south, one sees the skyline of downtown Hamburg. With the proper clothes, this can be enjoyed in any season or type of weather.