By booking a room at the CS you get access to the Atlantis pools, slides and beach. I guess they have a deal with Atlantis. There is usually alot of information on here about it. We got a taxi over to atlantis and enjoyed the beach area about 2 blocks away, its a public beach. We had 7 people and would have to get two rooms. We did walk through Atlantis and drop a few coins in the machines, and saw the part of the aquarium that is free and the shops and went down to the local beach.