While the location is great, I have trouble recommending this beach more highly when there are such…read moregood alternatives (see the reviews for See und Freibad Fischbach) in the area. The main problem is that the beach is rocky, ill-suited for sunning or as an embarkation point for a swim. Though...if there only for sunning there is a nice grassy area a stone's throw from here. There are also ample choices for drinks or dining in the area.
If you want to dip your toes in to cool off in the middle of a walk along the beautiful shores of Lake Constance, enjoy. Otherwise if the swimming is really what you are after, take a short bike ride or drive to Freibad Fischbach or Wellenbad Ailingen.