Sydney
Of course the most populous city in Australia deserves its place in my ranking thanks to Manly Beach a charming place to hang it good when it's nice and warm but also to the magnificent Opera House. His Harbour bridge it is possible to climb or walk through is also an impressive monument to Sydney. To get to Manly just take the ferry to the port and for visiting the Opera house (inside is truly amazing) then a walk along the sea from the port will take you there, you come across can be aboriginal musician who sells boomerangs or may also be tempted by a pair of Uggs one of the many shops along the ride. One thing is sure, the same express visit to Sydney is needed on your trip. Remember the north of the city is an Australian wine country: the Hunter Valley where you will find vineyards and farms beaches for pleasure and absolute buds !