Sharks, crocodiles, penguins, dugongs (sea cows), and platypus are just some of the marine life that you will see at this aquarium. The main attractions are the underwater walkways through two enormous tanks—one full of giant rays and gray nurse sharks and the other where you can see the seals. The sharks are fed at 11am and the Fairy Penguins at 3pm daily. Other exhibits include a section on the Great Barrier Reef, where thousands of colorful fish school around coral outcrops. A touch pool allows you to stroke baby sharks. You can take a 15- to 20-minute behind-the-scenes tour of the Great Barrier Reef oceanarium in a glass-bottom boat, which leaves every 30 minutes from noon to 4:30pm and costs A$10 adults, half-price kids. You can also take the boat at shark-feeding time for about 30 minutes; the cost is A$15 per person. Try to visit during the week, when it’s less crowded. Allow around 2 hours.