Sitting on any sort of bus for 57 hours is not everybody's idea of fun. Even if the bus was a De-Luxe Coachlines and the brochure promised:
Well it was pretty boring. There were no or relatively few points of interest across the Nullarbor Plain. The only two I can remember are where the coast falls into the sea somewhere in South Australia and when the drivers swopped without stopping the bus. That was quite something, like a game of Twister as one driver's leg came off the accelerator and antother's went on. there wasn't any Health and Safety in those days and in the Bush, it was likely the only thing the bus would hit would have been a kangaroo.
The brochure went on to advise passengers that:
SHOWER STOPS are also made en routr and we suggest that towel, soap etc, is carried on board in overnight bag as suitcases cannot be opened en route.
That was because of the dust which gets into everywhere on the Nullarbor. The advice about the soap was misleading too, as in most places the water was so hard that no normal soap lathered - so there was the need to bring along something more industrial.