We were on the HAL Zuiderdam Memorial Day cruise and rate for Atlantis was $29.00 per person. We were not allowed to use any of the hotel facilities, beach, pools, etc...A real rip-off in my opinion. What we saw of the aquarium was very nice, but we wish we would have done something else and not paid so much. Many people on our ship went to the nearby Cabbage beach on paradise island and enjoyed it.