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Discover the Aquarium after dark in an unforgettable overnight adventure! With access to behind-the-scenes areas and an expert guide to show you the way, guests will explore the hidden treasures of the National Aquarium, from our hands-on Living Seashore exhibit to the shark catwalk, where our largest sharks swim below. Bring your sleeping bags and your sense of adventure! An evening snack will be provided, as well as a continental breakfast the next morning.

For girl scout troops, a  is available for an additional fee.

Sleepover tours occur weekly and take place from 6:30 pm on Fridays to 9 am on Saturdays.

To book your tour, please call Central Reservations at 410-659-4269 (available from 9 am to 4:30 pm, seven days a week).