Hi all! I'm trying to come up with an idea to conceal part of the liner exposed where the waterfall meets the pond. I have flagstone all around the perimeter except for these two locations on either side of the falls. It's too vertical to use more rock so I'm trying to find/think of something light that could be draped or inserted over these bare patches. Aside from aesthetically not pleasing,I'm concerned about UV damage to the liner ( its 45 mil). Any ideas or product suggestions would be much appreciated. Thanks!