Located on the shoreline of Nantucket Harbor, the Aquarium displays local Nantucket marine species and is an excellent place to learn about the amazing sea life around the island. Displays are always changing and range from crabs and jellyfish to tropical fish and seastars. All animals at the Aquarium are locally-collected and are released back into the wild at the end of the season.

Admission: Members Free; $10 Adults $8 Kids.  Admission includes the Natural Science Museum, Vestal St. Observatory tour, and the Mitchell House tour.

Locally Collected Species

All of the 80+ marine species displayed at the Aquarium are found around Nantucket and the exhibits change every year based on what is found throughout the season. No summer is the same as the one before! Sometimes we even find stray tropical fish!

The Aquarium depends on many local fishers and charter captains to many of the bigger animals we display . Special thanks to Just Do It 2, Critter Cruises, and Sayles Seafood for lots of recent donations.

Aquarium Exhibits

Touch Tank

Ever wanted to learn how to hold a crab? Get a feel for the marine life that lives on and near Nantucket beaches at the most popular aquarium activity. Home to crabs, shrimp, clams, snails, and more, the touch tank is a place where all ages can learn something new.

Outdoor Circle Tank

circletank-exhibitOne of the larger tanks at the Aquarium, the circle tank is home to larger animals, such as baby sharks, horseshoe crabs, flounder and more! It overlooks the harbor and is a perfect place to contemplate the natural beauty of Nantucket.

Aquarium Rooms

lobster-exhibitsEach room is filled with more than 50 animals including jellyfish, lobsters, shrimp, tropical fish, and common local species. Our live microscope exhibit changes daily to highlight small critters we find in our area. Animal displays change weekly to highlight new species or local ecosystems. There is always something new to discover!

2020 Update

Thank you to everyone that has supported the Maria Mitchell Aquarium during the 2020 season! If you love the aquarium and want to show your support, consider making a gift towards the 2020 Maria Mitchell Association Annual Appeal or donating an item from the MMA Aquarium Wish List.

Although we were not able to open the aquarium this summer, we ran several public and private outdoor programs and hosted our first Nantucket Green Crab Week. We also added some fun animals to our year-round collection! Clementine molted recently and is doing well, as is our 3 year-old four-eye butterflyfish. We look forward to seeing you in 2021!

Baby spotfin butterflyfish collected in 2020!

Learn about our Upcoming Programs!