After leaving Perth and crossing the Nullarbor, I travelled south from Port Augusta to Adelaide, along the coast through Mount Gambier to Melbourne, and up the Princes Highway through Eden to Sydney. The total distance of this route, taken from road maps and routemarkers, is 4895km; I clocked up around 170km of additional distance on side-roads and excursions, making the total journey a little over 5000km. For more details, see the FAQ page!