SARAH MARQUIS (44) is a Swiss adventurer and explorer. In 2010 Sarah travelled from Siberia to Australia, alone, on foot. From freezing cold to desert heat, from high mountains to jungles, six countries to cross, six different languages. This extreme walk lasted three years and she covered over 16,000km. On the walk she maintained little human contact and pulled a 55kg cart containing her clothes and supplies.
Along the route, she was harassed by a group of Mongolian men, threatened by Laotian drug dealers, and contracted dengue fever. To improve her safety, she sometimes disguised herself as a man and tried not to leave tracks so as not to be followed. She completed her journey in May 2013, when she arrived at a particular tree in the Nullarbor Plain that…