My son and I took the airboat tour. Very enjoyable would highly recommend it to anyone. My wife and daughter toured NASA and were happy with their excursion.
Did not find anything interesting as far a ship listed tours. Shopped around the port, and found it to be as one would expect. (busy, crowded etc. Did have a very enjoyable, if not to long a stay at Senor Frogs.
The tour was everything advertised, and towards the end of cruise the relaxing atmosphere was very welcome. My only problem with Freeport itself is the lack of time in port.