In South Australia, the most unforgettable trip to me was to take a “FLY TO LAKE EYRE” day tour, including walking arond in Marree.
Secondly was to drive from Adelaide, passing Port Augusta, Kanyaka Homestead, Hawker, Willow Springs Lookout, and come back passing Barossa Valley. The main reason for the travel was to explore the Old Ghan Heritage Railway, and the Lake Eyre.