With that excursion, you only get access to Atlantis' beach and the aquarium, not the pools and water slides. Those are reserved for hotel guests. If all you want to do is visit the casino, you can just take a taxi over to the resort. If you want to visit the aquarium, you can get a ticket for just that. DW Sue and I took the water taxi to/from Atlantis when we cruised in November. We decided not to pony up the $25 per person to walk through the "Dig". We walked around as much of the resort as we could, then spent 5 minutes in the casino where Sue won $75 at the quarter slots. We hightailed it back to the ship and spent the rest of the day on board the Wonder.