We did a snorkel tour in Grand Cayman. I think it was called the Sunken Boat Tour?? Well anyway, you go on a boat learn about this ship that sank way back when and then you snorkel in two different places one to see coral and fish and the other to see the submerged ship. This was a very cool tour. My dad actually lost his glasses in the water last year, so me and the two tour guides had to deep sea dive to look for them. We did not find them and my dad was stuck without glasses until the end of the cruise and since we were doing back to backs he had to go another week without them. He got a magnifying glass in Cozumel the next day, but the whole situation was quite funny.