Towards the end of the season, there were a few days that were warm, and on the way out I probably seen 25+ lizards, and had not seen any on previous trips(15+). Needs to be pretty cold to keep em out of sight. Use your best judgement, but always know that gators are everywhere there's water in Florida. I've read stories of people losing their dogs to a gator. I even think there's an old thread, where someone suggested to take along 2 buckshots. One for the gator and one for your dog. It would be a hard thing to watch and an even harder thing to do. Good luck with whatever you decide.
"He who knows nothing is closer to the truth than he whose mind is filled with falsehoods and errors." Thomas Jefferson