Yes, I think they do. A lot of people on our cruise did this. Sounds crazy to rent a room, but came with tickets to Atlantis, which was cheaper than the excursion. It was really beautiful when we "walked" through during our time in the Bahamas. We hung out on the beach down at the end of Atlantis, since I thought it was a little pricey for only 5 hours of time (all you get when off the ship). It did cost us nearly $30 for just 5 drinks (water, juice) at Starbucks, so I wouldn't doubt the cost of food within the resort!