National Aquarium

State: Maryland. Type: public aquarium at 501 East Pratt Street, Pier 3, Baltimore Inner Harbor. Opened August 8, 1981. Designated the 'national aquarium' by Congress in 1979 (no federal construction funds used). Spans 250,000 sq ft with 2.2+ million gallons of water and 17,000+ specimens across 750+ species. About 1.5 million visitors annually, making it Maryland's largest tourism attraction.

The National Aquarium is a large public aquarium on Pier 3 of Baltimore's Inner Harbor, conceived after Mayor William Donald Schaefer and housing commissioner Robert C. Embry visited Boston's New England Aquarium and decided Baltimore should have its own. Baltimore voters approved the project through a 1976 bond referendum, groundbreaking took place on August 8, 1978, and the aquarium opened to the public exactly three years later, on August 8, 1981. Congress designated it the country's 'national aquarium' in 1979, though the project received no federal construction funding. The complex has grown over the decades: the Pier 4 marine mammal pavilion opened in 1990, and a Glass Pavilion added in 2005 introduced the award-winning 'Australia: Wild Extremes' exhibit. Today the aquarium spans 250,000 square feet and more than 2.2 million gallons of water across its tanks, with the largest single tank holding 1.3 million gallons, and houses upwards of 17,000 animals across 750-plus species. It draws around 1.5 million visitors a year, making it Maryland's single largest tourism draw, and it also runs an active marine-animal rescue and rehabilitation program alongside a 4.3 MW solar farm supplying roughly 40% of the facility's power.

The aquarium is located at 501 E. Pratt St., Baltimore, MD 21202, on Pier 3 within the Inner Harbor district of downtown Baltimore, making it walkable from other harbor attractions.

Baltimore has a humid subtropical climate with hot, humid summers and cool winters. Because the aquarium's major exhibits are indoor and climate-controlled, weather has limited effect on a visit here beyond the walk to and from the harbor.

The aquarium is a year-round indoor attraction; weekdays and non-peak seasons (outside summer and school holidays) are generally lower-traffic, though specific crowd data was not confirmed in sources reviewed. Extended hours on Friday, Saturday (9am-9pm) and Sunday (9am-7pm) versus weekday hours (9am-6pm) suggest weekday mornings may be quieter.

The idea originated with Mayor William Donald Schaefer and housing commissioner Robert C. Embry after a visit to the New England Aquarium in Boston. Baltimore voters approved the project via a 1976 bond referendum, groundbreaking occurred on August 8, 1978, and Congress designated it the national aquarium in 1979 (without providing federal construction funds). The aquarium opened on August 8, 1981. It expanded with the Pier 4 Pavilion in 1990, adding marine mammal exhibits including Atlantic bottlenose dolphins, and again in 2005 with the Glass Pavilion, whose 'Australia: Wild Extremes' exhibit won the Association of Zoos and Aquariums' Best Exhibit award in 2008.

Visitors can explore the five-level Pier 3 pavilion's Blacktip Reef, Maryland habitats exhibit, the 335,000-gallon Atlantic Coral Reef, Shark Alley, and the Upland Tropical Rain Forest. The Pier 4 Pavilion houses Atlantic bottlenose dolphins and jellyfish exhibits, while the Glass Pavilion features the 'Australia: Wild Extremes' exhibit. The aquarium also operates a Marine Animal Rescue Program that has rehabilitated seals, dolphins, porpoises, whales, sea turtles and manatees.

Highlights include Blacktip Reef, the Atlantic Coral Reef (335,000 gallons), Shark Alley, the Upland Tropical Rain Forest, the Pier 4 marine mammal pavilion, and the Glass Pavilion's Australia exhibit.

The aquarium sits on Pier 3 in the Inner Harbor, walkable from downtown Baltimore hotels and from Baltimore Penn Station. BWI Thurgood Marshall Airport is the nearest major airport; exact distance to the aquarium was not confirmed in sources reviewed.

As of research (July hours): Monday-Thursday 9am-6pm, Friday-Saturday 9am-9pm, Sunday 9am-7pm; last entry is 60 minutes before closing. Hours vary seasonally, so confirm current hours on aqua.org before visiting.

As of research: Adults (ages 21-69) $49.95, Youth (5-20) $39.95, Seniors (70+) $39.95, children 4 and under free; membership pricing varies. Confirm current prices on aqua.org before visiting, as they change periodically.

Most visitors should plan at least two to three hours to see the major exhibits across all pavilions; a longer visit allows a more relaxed pace given the facility's size (250,000 sq ft).

Downtown Baltimore's Inner Harbor, where the aquarium sits, has a dense concentration of hotels within walking distance, ranging from large convention hotels to smaller boutique properties. Specific property names were not confirmed in sources reviewed and are intentionally omitted.

The Inner Harbor waterfront around the aquarium has a range of casual and sit-down dining, including seafood given the location; Harborplace's pavilions have historically offered additional quick-service and casual options nearby. Specific restaurant names were not confirmed in sources reviewed.

The Maryland Science Center, historic ships (USS Torsk, USS Constellation, USCGC Taney, Lightship Chesapeake), and Harborplace are all within walking distance along the Inner Harbor promenade.

The aquarium is walkable from Baltimore Penn Station (Amtrak/MARC) and downtown transit; a water taxi also connects the Inner Harbor to Fells Point, Canton and Fort McHenry. BWI Thurgood Marshall Airport is the nearest major air gateway.

As a large indoor facility, standard museum safety practices apply: keep young children close in crowded exhibit areas, and note exit/meeting points. For any emergency, dial 911; the aquarium's own contact line is 410-576-3800.

A light layer, since some exhibit areas (e.g., the Upland Tropical Rain Forest) can feel warm and humid while others are cooler; comfortable shoes for a multi-level, multi-hour visit; and a camera for the large tank displays.

Buying timed tickets online in advance is recommended, especially for weekends and summer, since the aquarium is Maryland's most-visited attraction (about 1.5 million visitors a year). Four partner parking garages offer a flat $18 rate per visit (up to 24 hours) with validation at the aquarium; members get a $10 flat rate. Arrive near opening or go on a weekday for a less crowded visit.

Dial 911 for any emergency. For visitor questions, the National Aquarium can be reached at 410-576-3800, or by email at access@aqua.org for accessibility questions.

National Aquarium - https://aqua.org

This section is being updated and will be available shortly.

This section is being updated and will be available shortly.

This section is being updated and will be available shortly.