We were down at FWB in mid-June. My nine year old son and I were snorkeling about 35 ft from shore and a 6' bull shark decided to cruise between us and the beach. Every one on the beach was freaking out of course. I was very nervous for him of course and had him behind me, but really was a pretty neat experience. We were probably pretty lucky in retrospect.
On the other hand-they closed another area of the beach at almost the same exact time for some biggies that were acting "aggressive" towards swimmers. Was back in the ocean the next day with the wife and boys, but it really rattled my 12 year old. Check out the link to the news story... http://www.nwfdailynews.com/article/6758