I saw a shark off my balcony at the FL show last week. I was watching the sea-rays swimming by and a Shark about 5 foot came up out of the deep water in to the shallows (about 6' deep) went around the float for the wave runners and back out to the deep ... I was on the 21st floor and could see it clear .. it was about the same length as the wave runner. My buddy Justin saw it with me and Pete saw it heading back out. not sure what type but it was Grey on top and rolled over a bit at one point and the belly was white.
I still went swimming about and hour later ..
the sea-rays were about 4 foot wide also ..very cool to watch them glide through ... right past the swimmers