The Deep is an aquarium located in Hull, East Yorkshire, England. It opened in 2002 and is one of the most popular attractions in the area. The aquarium is situated in a unique building that was designed to look like a ship and is located on the banks of the Humber River.

The Deep is home to over 5,000 marine animals from more than 3,500 species, including sharks, rays, turtles, penguins, and more. The aquarium features over 40 different displays that showcase the diverse marine life found in the world's oceans and waterways. One of the main attractions is the Endless Ocean exhibit, which is a 10-meter deep tank that houses a variety of sharks and other marine creatures.

The Deep is also home to the UK's only pair of green sawfish and the country's largest colony of Gentoo penguins. Visitors can watch the penguins swim and play in a specially designed enclosure that replicates their natural habitat.

In addition to its displays, The Deep is committed to conservation and research. It has a team of marine biologists on staff who are dedicated to studying and protecting marine life. The aquarium also runs a variety of education programs for visitors of all ages, including school groups, families, and adults.