Having just returned from a stay at Atlantis, I wanted to clarify some details about a day pass to Atlantis. Atlantis has loosened their policy about allowing "non-guests" to use the property, but only to a certain extent. I believe the cost of a day pass was $25. This pass allows you use of the beach, lounge chairs, aquariums, etc. BUT it does not allow you access to the water slides, lazy river, or pools. In order to use those you must wear a wristband reserved for hotel guests (or guests staying at Comfort Suites). I don't know how closely they check at all times, but during our stay they were pretty vigilant, particularly for using water slides, and rafts.