Skip Navigation

Announcement All Pratt locations are open at 50% capacity with COVID-19 safety procedures in place. Learn more.

Location Closure The Clifton Branch is closed due to maintenance issues.

Read to Reef - Aquarium youth education helper showing kids a horseshoe crab
The National Aquarium in Baltimore

How to Participate

Participating children have through June 27, 2021 to complete the program and visit the Aquarium. Blackout dates are March 29, April 2-5, and May 29-31, 2021. Bookmarks are no longer available at Pratt locations.

Get Reading!

Borrow, read or listen to someone read any five aquatic- or conservation- themed books and record them on your Read to Reef bookmark. You can also register and track your progress online with Beanstack.

Need ideas to get started? Check out a PDF list of recommended Read to Reef books. You can pick up library books in person, or browse eBooks in our Digital Library.

Reserve Your Tickets

The National Aquarium is now open, with social distancing and other safety procedures in place. All guests must reserve their visit date and entry time in advance online using the reservation portal at

To reserve your timed entry slot, use the code printed on the bottom of your Read to Reef bookmark. This code can only be used once to redeem four tickets of admission. Children two years old and younger do not require tickets, and if you do not use all four tickets in your transaction they are forfeited and cannot be used on a separate day.

Before your visit, please review the National Aquarium’s updated protocols and procedures in response to COVID-19 before you arrive on-site.

Upcoming Events

More Information
staff pulling a book from bookshelf

Browse the Catalog

Browse available materials in the Pratt Library catalog.