When my best friend moved semi-permanently to Cambodia, I was devastated. I thought I'd never be able to survive the separation and I immediately made plans to visit her.
After driving all day, by nightfall or well after nightfall really, we were somewhere in the "sheep country" of SA, a bit over an hour short of Broken Hill. There was nothing 'comfy' like sand here.
If you're ever travelling across Australia on the Eyre Highway, be sure to budget time for The Old Telegraph Station.