Dolphins, parasailing, cruises, things to do and sightdeeing are available in the St. Petersburgh, Clearwater and the Tampa area.
Click on the below sites and it will take you to many more that you have requested plus Tampa which I added as being in the general area.
Pick what interests you and open them as I have set them up for you.
dolphin and parasailing trips cruises near petersburg clearwater tampa fl - AO Things to do see activities sightseeing photos in St