Take a ferry ride down Parramatta River, in fact all ferry rides in Sydney are very reasonable priced and give you a great view of the harbor and the surrounding areas. Sydney Toronga Park Zoo is also worth the trip...you'll be envious of where the Giraffes live! All beach suburbs from Pam Beach to Cronulla are worth visiting. Chinatown and Hay Market are worth a visit, and if you get to watch any big sporting event in Sydney, you will experience the real Aussie at play. Blue Mountains is a must see, Jenolan Caves 1 hour West of Katoomba, good restaurants are everywhere in Sydney, Sydney Fish Market should also be on your to do list, Sydney seafood is brilliant!