In this week's show: Nigeria starts the month by celebrating six decades of self-rule. We take a look back at the watershed moments that led up to and followed the African giant's independence from Britain. Also, Cameroon's sand divers risk their lives to plunge into the Sanaga river in search of sand for the building industry. Plus, we visit one of the open secrets of Algerians hoping to get away from it all. Beni Haoua is a popular camping spot not far from the capital.