My top memory of Sea World was making the mistake of sitting on a bench in the sun in the afternoon, sometime around August 1989, waiting while my family watched a show that I wasn't interested in seeing. I was there for 20-30 minutes, we went to stand in line for the shark show, I started getting tunnel vision, next thing I knew I was being dragged to a bench to lie down! Apparently I fainted onto a guy standing next to me in line after saying that I was ready to go... that's the only time I've ever fainted.
Moral of the story is, don't just sit there in the Orlando sun in the summertime! And drink lots of water!