There's something like 50,000 km of coastline to Australia. Some of the nicest is in Sydney. Whether it's Bondi, Manly or the harbour - including Sydney Opera House - you probably want to be near the water. If sin's your thing, don't forget Kings Cross, recently immortalised on Underbelly. You'll be near Kingsford Smith International Airport, too: perfect if you have an early flight to be on.