Top 10 Largest Aquariums In The World 2026: See the Underwater Wonders

Aquariums offer a unique window into the diverse ecosystems beneath the ocean's surface, serving as vital centers for conservation, research, and public education. These institutions allow millions of visitors each year to connect with marine life, fostering a deeper understanding and appreciation for aquatic environments. As of 2026, the global landscape of marine attractions continues to expand, with facilities pushing the boundaries of scale and immersive experiences.

Our publication has compiled a definitive list of the Top 10 Largest Aquariums In The World 2026. To establish this ranking, we meticulously analyzed publicly available data, primarily focusing on the total water capacity of each facility, measured in liters and US gallons. Beyond sheer volume, we also considered factors such as the size of their largest individual tanks, the diversity of marine species housed, their contributions to marine animal rescue and rehabilitation, educational programming, and overall visitor experience. This comprehensive approach ensures our list reflects not only the colossal scale of these aquariums but also their impact and significance within the global marine conservation community. The following institutions represent the pinnacle of aquatic exhibition, each a marvel of engineering and biological stewardship.

These Are The List Of The Top 10 Largest Aquariums In The World 2026:

1. SeaWorld Abu Dhabi

Opened in May 2023, SeaWorld Abu Dhabi stands as the largest marine life theme park in the Middle East and the first SeaWorld park established outside the United States. This monumental facility, located in Abu Dhabi, UAE, boasts an impressive total water capacity of 58,000,000 liters, equivalent to 15.3 million US gallons. The park is structured into eight distinct, immersive realms, each designed to transport visitors through different aquatic environments.

Beyond its entertainment offerings, SeaWorld Abu Dhabi is deeply committed to marine animal rescue, rehabilitation, and research efforts within the region. It functions as a critical hub for protecting local marine biodiversity, underscoring its role as more than just an attraction but a significant contributor to global marine science and conservation.

2. Chimelong Ocean Kingdom

Nestled in Hengqin, China, Chimelong Ocean Kingdom is a record-breaking marine park with a total water capacity of 48,750,000 liters, or 12.87 million US gallons. This facility holds multiple Guinness World Records, including the world's largest underwater viewing dome, which provides an unparalleled perspective on its diverse inhabitants. Its main aquarium tank is particularly notable, containing 22.7 million liters of water, a significant volume on its own.

From the outside, the park is recognizable by its giant 63-meter blue whale shark statue, an iconic structure that captures the imagination. Chimelong Ocean Kingdom once held the title of the world's largest aquarium by total water volume until 2014, marking its historical importance in the evolution of large-scale marine exhibits.

3. S.E.A. Aquarium

The S.E.A. Aquarium, situated on Sentosa Island in Singapore, was recognized as the world's largest aquarium by total water volume until 2014, holding 45,200,000 liters, or 11.9 million US gallons, of water. This establishment is acclaimed for possessing the world's largest collection of manta rays, a group that includes the rare giant oceanic manta ray, a species seldom seen in captivity.

The aquarium features forty-nine distinct habitats, meticulously designed to replicate various marine environments. Its centerpiece, the Open Ocean tank, is a truly spectacular exhibit, containing over 18,000,000 liters of water and housing approximately 50,000 animals. This tank guides guests on an immersive journey, simulating an underwater voyage from the waters of Southeast Asia to the distant Arabian Gulf.

4. Georgia Aquarium

Located in Atlanta, United States, the Georgia Aquarium is a prominent institution that held the Guinness World Record for the largest aquarium from its opening in 2005 until 2012. Its impressive total water capacity reaches 41,640,000 liters, equivalent to 11 million US gallons. The aquarium is particularly famous for housing whale sharks, gentle giants of the ocean, in its largest exhibit tank, which alone contains 6.3 million gallons of water.

The facility is home to more than 100,000 marine animals, distributed across five diverse galleries, each presenting a unique aspect of aquatic life. The Georgia Aquarium provides significant educational experiences and generates substantial revenue through charitable contributions, solidifying its role as a leader in marine science and public engagement.

5. L'Oceanogràfic

Europe's largest aquarium, L'Oceanogràfic, opened in 2003 in Valencia, Spain, as an integral part of the architectural complex known as the City of Arts and Sciences. This marine complex features a total water capacity of 41,600,000 liters, or 11 million US gallons. It is designed to represent various marine habitats from around the globe, housing more than 45,000 marine creatures across nine distinct underwater towers.

One of its most captivating features is a 35-meter underwater tunnel, which offers visitors an immersive experience as they observe a wide array of marine life, including various species of sharks and rays. L'Oceanogràfic serves as a major tourist attraction and a scientific center, showcasing the diversity of aquatic ecosystems in an innovative setting.

6. Moscow Oceanarium (Moskvarium)

The Moskvarium, Moscow's prominent oceanarium, opened its doors in 2015 and currently ranks among the world's largest aquariums with a total water capacity of 25,000,000 liters, or 6.6 million US gallons. Situated in the heart of Russia's capital, this facility is home to approximately 12,000 marine animals, representing 600 different species.

The Moskvarium is divided into three distinct zones: The Aquarium, the Swimming with Dolphins Centre, and the Aquatic Show Zone, encompassing 80 individual tanks. Visitors can observe notable animals such as various species of dolphins, sharks, and rays, making it a significant attraction for marine enthusiasts and a key educational resource in the region.

7. The Seas with Nemo & Friends

Located within Epcot at Walt Disney World in Bay Lake, Florida, The Seas with Nemo & Friends uniquely blends entertainment with marine education. This attraction features a total water capacity of 21,580,000 liters, or 5.7 million US gallons. Visitors can explore a massive saltwater tank, often while experiencing a ride themed around Disney's "Finding Nemo" film.

The aquarium houses over 60 species of marine animals, totaling approximately 6,000 creatures. A significant number of these animals have been rescued and rehabilitated through collaborative efforts with a dedicated team of marine biologists, highlighting the facility's commitment to animal welfare and conservation education.

8. Aqua Planet Jeju

Aqua Planet Jeju, located on Jeju Island, South Korea, is a large indoor aquarium that holds 20,000,000 liters, or 5.28 million US gallons, of water. This facility plays a significant role in marine education and tourism for the region. It features a substantial main tank that acts as a central display for its diverse collection of marine life.

The aquarium showcases the rich aquatic biodiversity of Korea and beyond, providing an engaging experience for visitors. Aqua Planet Jeju has become a popular destination for those seeking to explore underwater ecosystems and learn about the varied creatures that inhabit them.

9. Shedd Aquarium

As one of the longest-operating indoor aquariums in the United States, the Shedd Aquarium in Chicago, Illinois, has a rich history of marine exhibition. It possesses a total water capacity of 18,900,000 liters, or 5 million US gallons. Its largest single tank contains 2 million gallons, or 7.6 million liters, of water, providing ample space for its aquatic residents.

The Shedd Aquarium features numerous permanent exhibits, each carefully curated to display a wide variety of sea creatures from different global aquatic environments. It continues to be a highly popular destination, attracting millions of visitors annually who come to learn about and appreciate marine life.

10. Osaka Aquarium Kaiyukan

The Osaka Aquarium Kaiyukan, situated in Osaka, Japan, is one of the world's largest aquariums with a total water capacity of 10,000,000 liters, or 2.64 million US gallons. This facility is uniquely themed around "The Natural Environment of the Pacific Rim," showcasing the aquatic life found in the Pacific Ocean and its surrounding regions.

It exhibits approximately 30,000 specimens, representing about 620 species of aquatic life, including various fish, jellyfish, and marine mammals. A major design feature is its vertical corridor-style tank exhibits, which provide visitors with the sensation of diving to the ocean floor as they descend from the eighth to the third floor, offering a truly immersive viewing experience.