The Pier 3 Pavilion is spread across five levels and each floor has different exhibits that link to the main theme. This building also has two huge tanks one of which represents the Atlantic Reef and the other, the open ocean.
The Pier 4 Pavilion is a smaller building that was opened in 1990. It has a dolphinarium and also an interesting exhibit on marine mammals. The building currently has a temporary exhibit of jellyfish. Some of the animals in the building include Atlantic Sea Nettle, Moon Jelly, Spotted Lagoon Jelly, Purple-Striped Jelly, Upside-Down Jelly, Egg Yolk Jelly and Leidy's Comb Jelly.
The Glass Pavilion has a new exhibit called Animal Planet Australia: Wild Extremes. This exhibit is based on the representation of a river gorge in Australia and has a number of pools where aquatic life endemic to Australia can be found.
There are no Halal food outlets in the cafeteria of the National Aquarium but both, Masaajid and Halal restaurants, can be found within close reach of the National Aquarium in Baltimore.