Based on the map, it looks like he walked along Highway 1, which also avoids the Kimberleys and the Top End. https://en.wikipedia.org/wiki/Highway_1_(Australia

Based on the map, it looks like he walked along Highway 1, which also avoids the Kimberleys and the Top End. https://en.wikipedia.org/wiki/Highway_1_(Australia) https://en.wikipedia.org/wiki/Highway_1_(Australia)