It's a "Fury" catamaran. They take us out about 7 or 8 miles to a place called "Sand Island" - I think that was the name. The water is fairly deep there - 20 feet or so. The advantage is that it is very difficult to accidently touch the reef (which is deadly to the coral). There are many, many fish and other critters out there.
You really are out in the middle of the ocean at this point. The waves are like the "bobbing" waves in a wave pool - NOT the 20 foot wall of water you get at Typhoon Lagoon's wave pool. DS13 kept getting a lot of water down his snorkel because he kept tucking his chin down, which aimed the snorkel towards the water. Once he got that straightend out, he was fine.
The crew served soft drinks and snacks while going out to snorkeling and added alcholic beverages for the trip back to shore.
Me, I get motion sickness and the bobbing in the ocean and on the boat really got to me. I tried sleeping off the effects on the trip back into Key West. Next time I take a double doase of Dramamine!! I think that we were suppose to "sail" out and back. I'm not sure we did any sailing, we definatly motored out to the snorkel location (needed to get out of the downpour that was heading into Key West). Comming back, I can't say if we sailed or not.
DW really enjoyed this snorkel trip. For her it was the best so far (CC, St. Johns, Key West and Grand Cayman). DS and I put it second behind our snorkel trip in Grand Cayman. At GC we did the trip that goes to a shipwreck and another reef. We never left the harbor, we snorkeled infront of where the Magic was anchored. Very calm waters here.