In another part of the Namib, we travel through a field of tall red sand dunes that light up against the deep blue sky, to reach Sossusvlei. A mixed Afrikaans and Nama word meaning “the dead-end marsh”, Sossusvlei is a shallow marshy patch, the only remnant of a long-dead river. It is a remote and atmospheric spot. We almost get lost in a sudden sandstorm trying to reach it.