The red, sandy mass of the Simpson Desert stretches across 176,000 square kilometres of the Northern Territory, and into Queensland and South Australia. The landscape is relentless. In parallel lines from north to south dunes stretch as far as the eye can see - some ridgelines continuing unbroken for 200 kilometres, with peaks soaring to 40 metres.
There are no maintained roads, no escape routes and, with summer temperatures reaching 50 degrees, no second chances for the unprepared. It took Samantha Gash four days to run across it.
Via Silk Interiors