BV,
Most of the east coast of Fla. from Miami all the way to Daytona Beach will be swarming with spring breakers when you're there. As the other posters suggest, it'll probably be lots less rambunctious on the west coast, and if you don't mind driving a bit further down, look at Naples, Venice, Marco Island. Good locations with lots of beaches, and Hilton, Hampton, and BW properties in the area. Several good shopping and dining areas in the Naples area and the fishing, if you want, is excellent. Naples has a fishing pier, and there are many charter boats or boat rentals for some days on the water.
Have a good trip.
bj-21.