27th June 2011 Following our noses - and the GPS's thin blue line - we successfully managed to find our way down Botswana’s eastern border. We entered South Africa through the border post at a place called Martins Drift. I believe the term drift refers to the sand bars that when formed across the Limpopo River in 'the old days’ provided a point of crossing for the Boers and their drays. It was at this border crossing that we met Constable k*** Head o...