Yes, Washington DC has the National Aquarium

Washington DC is home to the National Aquarium, located inside the Department of Commerce Building at 14th Street and Constitution Avenue NW in downtown DC. It is one of the oldest continuously operating aquariums in the United States, first opened to the public in 1873. The aquarium is free to enter, though donations are accepted.

The National Aquarium holds thousands of fish and aquatic animals across multiple tanks and exhibits. The building itself is a historic federal structure, and the aquarium occupies the basement level. Unlike larger aquariums in other cities, the National Aquarium is relatively compact — most visitors spend one to two hours there.

Key Takeaways

  • The National Aquarium is located in the Department of Commerce Building at 14th and Constitution Avenue NW and is free to enter.
  • Hours are typically 9 a.m. to 5 p.m. Monday through Friday and 10 a.m. to 6 p.m. on weekends, though you should confirm current hours before visiting.
  • The aquarium features freshwater and saltwater tanks with fish, sea turtles, and other aquatic life, but it is smaller than major aquariums in Baltimore or other cities.
  • Parking in downtown DC is limited and often paid; public transit via Metro is the most practical way to reach the building.

Hours and How to Get There

The National Aquarium is open Monday through Friday from 9 a.m. to 5 p.m. and Saturday and Sunday from 10 a.m. to 6 p.m. These hours can change seasonally or for federal holidays, so check the Department of Commerce website or call ahead before you go. The aquarium is closed on federal holidays when the building itself is closed.

The easiest way to reach the aquarium is by Metro. The Federal Triangle station (Red, Orange, and Silver lines) is about a five-minute walk from the building. If you drive, street parking in the area is metered and often full during business hours. A paid parking garage is located nearby, but public transit is faster and cheaper for most visitors.

What You Will See Inside

The National Aquarium displays both freshwater and saltwater species in a series of tanks arranged throughout the basement level. You will find fish native to the Potomac River and Chesapeake Bay, as well as tropical fish and other marine animals. The aquarium also houses sea turtles and other larger aquatic creatures in dedicated exhibits.

The collection is educational rather than massive. Tanks are labeled with information about each species, their habitat, and their role in their ecosystem. The space is climate-controlled and well-lit, making it comfortable to walk through at your own pace. There are no rides, shows, or interactive touch pools — it is a traditional viewing aquarium.

Admission Cost and What to Bring

Admission to the National Aquarium is free. The aquarium does accept donations, and donation boxes are located throughout the space. No tickets are required; you straightforward walk in during operating hours.

Bring comfortable walking shoes, as you will be on your feet the entire visit. The basement can be cool, so a light jacket is a good idea. If you are visiting with children, note that there are no food vendors inside the aquarium itself, though restaurants and cafes are available in the surrounding downtown area. Photography is generally permitted for personal use.

Comparing the National Aquarium to Other Options

The National Aquarium in DC is much smaller than the National Aquarium in Baltimore, which is located about 40 miles north and features a much larger collection, a tropical rainforest exhibit, and paid admission. If you are looking for a more extensive aquarium experience, Baltimore's facility is significantly larger and more comprehensive.

The DC aquarium works best as a quick educational stop or a free activity when you are already downtown visiting other federal buildings or monuments. It is not a destination that requires a full day of planning. Many visitors combine it with nearby attractions like the National Mall, the Smithsonian museums, or the Washington Monument.

Accessibility and Facilities

The National Aquarium is located in a federal building with accessible entrances and elevators to the basement level. Restrooms are available on-site. The building is air-conditioned and climate-controlled year-round.

Strollers are permitted, though the basement space is not particularly wide, so navigating with a large stroller during busy times can be tight. Service animals are welcome. If you have mobility concerns, call ahead to confirm the most accessible route into the building and to the aquarium entrance.

Planning Your Visit

Plan to spend 45 minutes to two hours at the National Aquarium, depending on how much time you spend reading the tank labels and observing the animals. Weekday mornings tend to be less crowded than afternoons and weekends. School groups often visit during weekday hours, so if you prefer a quieter experience, visiting on a weekday afternoon or early evening may work better.

Check the Department of Commerce Building's website or call the aquarium directly before you go to confirm current hours, as federal building schedules can change. Bring a small amount of cash if you want to make a donation, though card donations may also be accepted.

Frequently Asked Questions

Is the National Aquarium in DC the same as the one in Baltimore?

No. Washington DC's National Aquarium is smaller, free, and located in a federal building basement. Baltimore's National Aquarium is a separate, much larger facility with paid admission and more extensive exhibits. They are about 40 miles apart.

Can I bring my own food and drinks inside?

Outside food and drinks are typically not permitted inside the aquarium itself, though policies can vary. Check with staff when you arrive. Water bottles are usually allowed. There are restaurants and cafes in the surrounding downtown area if you want to eat nearby.

Is there a gift shop?

The National Aquarium does not have a large gift shop like bigger aquariums do. There may be a small counter with basic items, but do not expect extensive merchandise. Plan to shop elsewhere if you want souvenirs.

What if the aquarium is closed when I want to visit?

The aquarium closes on federal holidays and may have limited hours during certain times of year. If you are visiting DC on a holiday, check the Department of Commerce Building's schedule first. The Smithsonian museums are free alternatives that remain open on most federal holidays.

Can I take photos inside?

Yes, personal photography is generally permitted. Flash photography may disturb the animals, so use natural light or your camera's available light setting when possible. Professional photography or filming requires permission from the Department of Commerce.