it was the Disney Key West Catamaran Sail & Snorkel Tour. They take you a few miles out (about 45 minutes from the dock) to a coral reef. I took pictures with an underwater disposable, and should have them later in the week. I asked the Captain, if this was where they usually went and he said that they go to several spots, depending on the winds and surf, and that on this day this was the clearest water. The prices are $44 adults and $22 for children minimum age is 6.