There was even dinghy sailing on our local "Stowe Pool" in Lichfield until an algae problem several years ago. For a while, they didn't even let the anglers use it but they're back now so I'm taking the opportunity to try out the sail boats on it until such time as someone says "Oi, stop!"
I can't see I'm doing any more harm (less, actually) than the anglers
btw:water is dense, equating to 1kg of buoyancy for every litre displaced (important, that, to us scuba divers)
So, when I was helping our local Wildlife Trust prepare a Tern raft to go out on a lake, I pointed out that the four 5 gallon buckets filled with concrete as anchors probably weren't going to be enough, but they didn't believe me.
It dragged.