John,
I know where there a water hazard down in Hollywood that has small tarpon in it. I caught two on a bass weight spinning rod back 15 years or so ago, the largest was as long as my arm and the other a little smaller. I know as tarpon go they are babies but they were sure fun. The ponds are connected to the intercoastal by a pipe. I don't know how to get access these days as all my friends who formerly worked for the resort are gone with the change in management companies.