The National Aquarium and its Animal Care and Rescue Center are temporarily closed in response to COVID-19 (Coronavirus). CLICK HERE for more information.

“Hallowmarine” Returns to the National Aquarium


Join the National Aquarium for its annual “Hallowmarine” celebration featuring Halloween-themed crafts, creepy-crawly animal encounters, a costume parade, and more! Guests are invited to dress up in costume and can also enjoy a lesson from National Aquarium experts about how to green your Halloween!

As with years past, the National Aquarium divers will do underwater pumpkin carving at 11 a.m. and 2 p.m. on both days in the Atlantic Coral Reef exhibit.

Guests can also enjoy Sea Monsters 4D: A Prehistoric Adventure at the National Aquarium’s 4D Immersion Theater. For an additional $5, guests can travel back in time and follow an incredible sea monster on her journey to survive in one of the most dangerous seas in history.

Saturday, October 25 and Sunday, October 26, 2014
10 a.m. – 3 p.m.

National Aquarium
501 E. Pratt Street
Baltimore, MD 21202 

Activities are free with the price of admission. For ticket information, visit


Sea Monsters 4D:
A Prehistoric Adventure

Sea Monster 4D Trailer