Sydney Aquarium. Definitely visiting here next time I go to Aussie
Luna Park. Fun medium sized amusement park in Sydney Australia. Best view is from the Opera house or "The Rocks". Over the years it has fallen into disrepair several times only to be rescued by a showman willing to give it a go. First opened in 1935, it's most recent renovation was completed in 2004 when it reopened to rave reviews.