We visited the Atlantis resort which is on Paradise Island just off of Providence Island where Nassau is.
Google Maps describes Atlantis as "Expensive beach resort with a water park." Expensive it is but they really deliver. There are other facilities on Paradise Island but Atlantis dominates it.
There are five hotels that are part of Atlantis. We stayed at The Reef which is family oriented.
TripAdvisor's review is here. The wikipedia article is here.