Goose poop

So as of right now we have our ceremony booked at a Catholic Church. I've come to realize this is not what I want. I grew up catholic but I really do not want a catholic ceremony. I found a beautiful spot by a lake at a local county park. It's $120 for the entire day so we could have our ceremony whenever we wanted. I went to look at it a few days ago and there was a ton of goose poop. The parks employee said there is minimal clean up in the winter and in the summer they clean it every morning but by the afternoon geese come back. Has anyone dealt with this? Did you just hire someone to come right before? I don't want goose poop all over me or my guests.