[citation needed] The £12 million building was designed by Manchester-based Buttress Fuller Alsop architects to resemble the shape of a crashing wave.

Its stated aim is to "enlighten, increase knowledge and raise interest in the marine environment using an interactive, entertaining and sustainable approach.

"[1] The interior houses tanks, pools and submerged tunnels designed to take the visitor through different habitats of the marine environment.

The main aquarium tank holds 4,000,000 litres (1,100,000 US gal) and features a 71-metre (233 ft) underwater tunnel.

The aquarium's shark dive won the Visit Chester and Cheshire Awards 2010 category for Best Tourism Experience of the Year.