The main tank contains 3,000,000 litres (790,000 US gal) of water, and the animals can be viewed through acrylic windows or from the 80-metre (260 ft) underwater tunnel.

Busan Aquarium is a joint project between Living and Leisure Australia (LLA) and the local government.

This is the first major tourism undertaking with a local government under the Private Investment Promotion of Infrastructure Law.

Living and Leisure Australia has since been acquired by Merlin Entertainments, the world's second largest attraction operator.

Since February 5, 2010, Busan Aquarium has formed a sister building tie-up with Aqua World.