Gatorland is a fantastic half-day attraction. Lots of gators (which you can feed), a small aviary, entertaining shows, a cool boardwalk through the swamp, a splash pad for the kids, and a train that takes you all around the park. We paired Gatorland with an airboat ride on our Christmas vacation, and it was one of our favourite days of the entire trip.
I have tons of photos and details about Gatorland in my trip report. Click on the link in my signature. Gatorland starts at page 4, post 60.