I'm not going to google everything for you because 1.) I'm lazy 2.) I'm using a phone. But there are some great trails at alafia and boyette. It's not going to be like riding in the mtn's, but. A lot of fun can be had. 
derrgti said:My Sister has been bugging me to move down and help with the family business so my father can retire.
when I am down there it's just so flat everywhere I can't imagine anywhere to ride mtb.
If I moved there it would be around the Port Charolette area, let me know how far I would have to travel to ride anything other than road.
Derrick
mikerod87 said:Moved here from Ohio and the trails lack the hills but I will tell you they are more technical due to roots and trail makers have been really creative on making the trails. IE. Oleta. Markham is more muddy but has higher coaster style riding. Oleta is more technical, markham is more muddy and more difficult. I have to hand it the club mudd people.