It's clear that if the waves have an effect on the bottom of the water body or the shoreline, there will be a resuspension of any sediments that are present. The water composition and water quality will change, as well as the visual aspect. That will also have an impact on the shoreline. So there can be consequences on all of these elements.
If it only happened for one weekend per summer, there would be no effect on the environment. You start to see more impacts when it happens over and over again. In that case, the environment is truly changed, which can obviously have consequences.