Even with the cool (to us) weather, this might be a nice time to visit Lake Eola in downtown Orlando. Sunday is predicted to also be clear and sunny. Of course you would need a rental car, but you could visit here in the time you have available. Here are a few photos to help you decide:http://tinyurl.com/yjoju29.

You can find out much more on Lake Eola by doing a quick Google search.