Guy Deacon served in the British Army for over three decades. At the age of 49 he was diagnosed with Parkinson's, but in his late fifties and early sixties, having left the military, he drove from the shores of Morocco to Cape Town, taking the western coastal route. On his way he raised awareness about the disease on the African continent and showed the world what can be done in the face of adversity. Here he tells his extraordinary and inspiring story.