Concierge.com's insider take:
Representing the opposite of the barefoot Bahamas experience, this megaresort on Paradise Island belongs to South African billionaire developer Sol Kerzner, a man responsible in his youth for the egregious Sun City, South Africa, and now tending the meticulous and deluxe One&Only resorts—one of which lies down the beach from here. With Atlantis, Kerzner has spawned a unique creature, a veritable Vegas-on-the-Sea. Consisting of three massive towers as well as the Cove (a resort within the resort), Atlantis has 3,300 rooms and countless bars, clubs, and restaurants, such as Nobu. If you wrest your eyes upward from the slots and Caribbean stud poker in the huge casino, you'll see multimillion-dollar Dale Chihuly glass installations; if you get overheated walking from one end of the resort to the other (it takes a good ten minutes), take refuge underground, where vast vitrines reveal an aquarium theme walk with small sharks and large rays twisting in and out of chunks of the Lost City of Atlantis "excavation." If you tire of that, head to the gigantic beachside ziggurat, a collection of thrilling extreme "Mayan" waterslides. It's all completely tasteless in a rather fabulous way.