From what I've been told, the big pond that goes under Renner dried up a few years ago, and then after a few Springs, the rain filled it back up, but there aren't fish in there, or hardly any.
There are fish in the East pond. I've caught them before, but not on my last visit, and apparently there is decent fishing at the small pond in the park.
I'll head back, maybe this weekend, but I'll go earlier. I'll keep an eye out for those snakes as well, but they are everywhere.