The 35 aquariums at the facility are home to 11,000 animals representing 451 species.[3][2] The aquarium contains a total of 5,000,000 L (1,300,000 US gal).[2] This includes an ocean tank for sharks, rays and other large fish, which is 36 m (118 ft) in diameter, 5 m (16 ft) deep, contains 3,700,000 L (980,000 US gal) of water and has an 80-meter (260 ft) underwater tunnel.[1] The Aquarium of Barcelona is part of the Aspro Parks.[3]