1. The Savannah Way: Cairns to Broome — 3700km, greatest road trip in Australia. 2. The Gibb River Road: 660km of corrugated dirt through the Kimberley. 3. The Oodnadatta Track: 620km, William Creek Hotel is one of the great Australian pubs. 4. The Flinders Ranges Loop: about 1200km return, accessible outback. 5. The Nullarbor: 2700km, the world's longest straight road — the most Australian road trip in Australia.