You can search for one of our numerous dive shops. I use Mac’s Sports for most of my diving resources. http://macssports.com 727-442-9931. We have lots of dive destinations in the Tampa / Clearwater / St. Pete area. Anything from dive charters / sink holes / fresh water springs. Mac’s should be able to point you in the right direction.
This site can be a good starting point too... http://underwaterflorida.homestead.com/
Happy Diving,
Rick