Tall grass is not the only option for reducing sightlines near the shore of lakes/ponds, and reducing sightlines is not the only option for reducing the appeal

Tall grass is not the only option for reducing sightlines near the shore of lakes/ponds, and reducing sightlines is not the only option for reducing the appeal of an area to geese. Another comment suggested introducing a pair of swans, though that also has potential downsides (swans can be aggressive toward humans).