Busch gardens if you like roller coasters. Ybor city for some food/bar/window shopping. Manatees should be congregating around the power station on the east side of the bay during the winter. caladesi island/ honeymoon island, clearwater, tarpon springs if you was to hang out by the gulf. homosassa springs or crystal river for pontoon boats and manatees. you jut missed Gaspirilla; myakka state park has a suspended tree canopy walkway. hillsborough river state park is in tampa, with boardwalks.
sports related, the yankees aaa team is there, check their schedule. see if ray-jay or Tropicana field are hosting anything.
what are you looking for?