http://www.abc.net.au/radionational/programs/latenightlive/lost-histories-of-australia/7924944
The details of this walk as described by the interviewee, Mark McKenna, are striking enough. Fascinating information as well about relations between the indigenous people and the whites doing the walk.
Really worth putting up with the rather irritating interviewer. And then reading the book, I imagine, although I have yet to do that.