Levison Wood's walk the length of the Nile
Credit: Nigel Pavitt / Getty Images

British explorer, writer, photographer, and former paratrooper Levison Wood is attempting to become the first person to walk the 4,258-mile length of the Nile. Accompanied by his guide, Boston, a former rebel from the Congo, he kicked off his journey in December 2013 at the river's Rwandan source and in late January 2014 was nearing Kampala, the capital of Uganda, on his way to Alexandria, Egypt. A documentary on the trek will air in 2015 on Britain's Channel 4 and Animal Planet in the United States.