The Deep is a public aquarium situated at Sammy's Point, at the confluence of the River Hull and the Humber estuary in Hull, England. It opened in March 2002.
Billed as "the world's only submarium", the tanks contain thousands of sea creatures 2500000l of water and 87tonne of salt housed in a building designed by Sir Terry Farrell and built as part of the UK National Lottery's Millennium Commission project.
The Deep is also a landmark centre for marine research. Staff marine biologists look after the animals in The Deep's collection as well as carrying out research into the marine environment. In 2013, the aquarium was voted the best family place to visit in Hull.[9]
The Deep is a charitable public aquarium dedicated to increasing people's enjoyment and understanding of the world's oceans.