Hmmm, not exactly sure if it was Walkers crossing, but, went to Inamincka then out to some lakes north of there for a night, Beautiful, you had to drive out thru the desert to get there, over a few dunes then you come across a massive lake, I'll have to have a look at a map to tell you exactly what where it was and I'll find a couple of pics. From there we went back kto Inamincka, then down the Stresleckie to SA. Very stunning landscape.
Edit ---- Coongie Lakes !!!!!
http://www.southaustralia.com/2824.aspx