Ria was on a mission to run 550km across Egypt’s Sinai Peninsula ... “There were places with just sand dunes, where there was no path at all. Even the footprints would be blown away in no time.” As ...

The town of Swakopmund in Namibia is world-famous for its huge desert landscape and giant dunes that create ideal conditions ...

The sand that makes up the dunes had traveled too, migrating west from Egypt and Sudan. We were guided by an old French map that depicted the dunes as right parentheses, all pointing into the wind.