Thanks! I hope I don't shriek.
A huge one scared the crap out of me at Trunk Bay once. I was the first one on the trail that day, it must have been sleeping and was hidden in the sand. It came up right under me and sand went everywhere. It must have had a wing span of six feet!
Have been to Grand Cayman several times, and agree it has some gorgeous water. The clearest I have ever seen on the islands. Especially Seven Mile Beach.
I am going to head for Abanks for some more snorkeling after..and a beer. I will probably need one.