Samantha Gash gave up a potentially lucrative career in the law to become an ultra marathon athlete. She has run across South Africa, the Simpson Desert, and 250 kilometres of Antarctica. What motivates someone to want to run thousands of kilometres through the most inhospitable terrain? For Samantha, who is also a social entrepreneur, running is a way to raise funds for the causes she believes in. Her feats of endurance were captured in the documentary film, Desert Runners, which opened last year’s Breath of Fresh Air Tasmanian Film Festival. She is in conversation with Paul Barclay .