The Oldest Desert in the World – Crossing the Namib Desert. The Namib Desert in Namibia is considered the world’s oldest desert. It covers more than 102,248 square miles (270,000 square kilometers) of the southwestern edge of the African continent. In this article , Nicolas Genoud of Geko Expeditions, brings us on a 7 day … Continue reading The Oldest Desert in the World – Crossing the Namib Desert