The eastern third of the country is the most visited, with Sydney as a starting point.  Stay in the historic Rocks area of cobbled streets and interesting shops across Circular Quay from the famed Sydney Opera House, cruise the harbor, go to the top of the Sydney Tower, see the city sights by bicycle or vehicle, climb the Harbor Bridge or even do an aerial tour by seaplane to get a perfect view of this beautiful city. 

Visit the nearby Hunter Valley wine country and the Blue Mountains by 4x4 vehicles.  Look for kangaroos and koalas.  Visit Melbourne and spend a few days exploring by foot and by tram the nooks and crannies of this hip and exciting city, then take the Great Ocean Road to Adelaide with a couple of nights en route.

Adelaide is the stopping off point for the wine country of the Barossa Valley, the ferry or flight to Kangaroo Island, and The Ghan train north to Alice Springs and on to  Darwin.

Take a camel to breakfast at Ayers Rock, learn about the constellations of the southern skies at a desert dinner, walk around the nearby Olgas, or venture further afield to Mount Connor.

Fly to Cairns and drive north to Palm Cove and Port Douglas for some well-earned relaxation on the Great Barrier Reef.  Cruise the reef for a day or two or stay on one of the fabulous resort islands.  Hayman, Heron, and Lizard Islands boast some of the best resorts in the world with an underwater paradise second to none.

From Port Douglas visit Daintree National Park and Cape Tribulation where the Daintree Rainforest comes right down to the shore to meet the Great Barrier Reef. 

If you have the time, there's so much more!  See the wildlife on Kangaroo Island, drink wine, eat oysters and look for devils in Tasmania, and see the ancient Aboriginal rock art up in the Top End, complete with camping adventures or luxury safaris.  Take the path less traveled and cruise the Kimberley with Orion Expeditions, relax on tropical Lord Howe Island, only a 2-hour flight from Sydney, explore Victoria's spa country and foodie paradise, or see Australia coast to coast on the Indian Pacific train.