With a world-class collection of over 17,000 animals frommore than 750 species of fish, birds, amphibians, reptiles, and mammals, there's always something exciting to see and do at the National Aquarium at Baltimore's Inner Harbor! Take this opportunity to explore the aquarium properly and enjoy member-only events with this one-year membership for 2 adults and up to 4 children. Certificate must be redeemed by March 28, 2014.