Desert, Mountain, Sea: Level 4

Three different parts of the world, but all of them dangerous, lonely places. Three different women, but all of them adventurous and determined.Robyn Davidson walked nearly 3,000 kilometres across the Australian desert -- with a dog and four camels.Arlene Blum led a team of ten women to the top of Annapurna -- one of the highest mountains in the world. Only eight came down again.Naomi James sailed around the world alone, on a journey lasting more than 250 days.