Sydney Aquarium Western Distributor, Darling Harbour, Sydney. Website At Sydney Aquarium you will discover marine life from the South Pacific Ocean with more than 12,000 fish and marine creatures. The aquarium was opened in 1988 and it is one of the best aquariums in the world where you will see some of the Northern and Southern Rivers, the Southern Oceans with penguins and seals and the Northern Ocean with the Great Barrier Reef with is the largest coral reef in the world. The aquarium is designed in the form of a huge wave and inside you will see lots of creatures that you would never before have been able to see. The complex has three of the largest tanks in the world where you will see sharks which weigh around 47 stone and 3m in length. Sydney Guide | Family Activities in Sydney Leave a Reply Cancel Reply Your email address will not be published.CommentName* Email* Website Save my name, email, and website in this browser for the next time I comment.