We all know what happened to the child at Disneyworld. In light of that I think it's a foolish mistake not to post warning signs at every pond, lake, and preserve here. To my knowledge there are no signs at most of them, maybe none of them.
I'm sure The Developer is aware that there are alligators around and that they can travel through the interconnecting water pipes and reappear somewhere else, but there are no warning signs. The potential liability should make them worry.
Sermon over.