Mark is the founding director of World Extreme Medicine and Across the Divide Expeditions and a Fellow of both the Royal Geographical Society and the Royal Society of Arts, Mark has been involved with expeditions for over 30 years and has led and organised expeditions to all of the world’s continents, both in desert and marine environments but also in both polar regions, at altitude and in the world’s most remote corners. Mark is also an award winning photographer with images published in the Sunday Times, Telegraph, Rough Guides and National Geographic.