Marine Habitat: Tourists can explore an extraordinary collection of lagoons, underwater ruins, caves and a large variety of marine life in this massive aquarium. Located at a lower floor of Atlantis Resort in Paradise Island, this massive aquarium has more than 50,000 aquatic animals. It also has 14 lagoons and over 8 million gallons of seawater. Guests staying at Atlantis can have free access to Marine Habitat, but visitors would have to purchase passes. Their availability is limited and would not be issued during peak occupancy periods.