Australia
One of the best attractions in the city, and a must-see for visitors. It is expensive - $27 single or $65 for a family of four - but well worth it. From the large opening platypus tank (try and count the shrimp) to the crocodile, seals and penguins, the aquarium has all the big draws. The most popular area is the shark tunnel - but don't miss the stunning Barrier Reef exhibit. Dozens of smaller tanks cover all of Australia's marine habitats - it really is a great aquarium.
Darling Harbour, west of the city centre
www.sydneyaquarium.com.au
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