Robin Hanbury-Tenison OBE is a well-known author, film maker, conservationist and campaigner – an explorer with a conscience. But what inspires explorers to push back the boundaries of the world? Why do they risk their lives in unforgiving conditions far from home? How do they survive at the limits of human endurance? Who are the great pioneers of land, sea and space? And where next? Robin will explore these questions through the writing of 40 fellow travellers from the likes of da Gama, Garnier, Gertrude Bell and Gagarin.