Kayaking or canoeing on hillsborough river. You'll see beautiful nature, birds and alligators! Swim with manatees ......

Ringling Museum in Sarasota, Caladesi Island, Tarpon Springs (go out with a sponge boat), Lowry Park Zoo, Eat at Frenchy's in Clearwater, catch a Yankees spring training game (or other team). All of these things, and the things mentioned above are within an hour or so of Tampa.