Introduction to Sydney Aquarium: The Sydney Aquarium (Sydney Aquarium) is a public aquarium in Sydney, New South Wales, Australia. It is located in the Sydney Central Business District east of Darling Harbor. The Sydney Aquarium opened in 1988 to commemorate the bicentenary of the founding of Australia. It is one of the largest aquariums in the world today. It houses a wide variety of Australian aquatic life, with more than 650 species on display, and a total of more than 6,000 Fish and various aquatic life from Australia's aquatic habitats. The most popular thing among tourists is the undersea glass tunnel under the aquarium. Here, tourists can see a variety of beautiful and strange marine life activities around them, as if they are under the sea.