Topic summaryDead Vlei Expand Summary Extracted from the Wikipedia article Deadvlei. History and descriptionDead Vlei has been claimed to be surrounded by the highest sand dunes in the world, the highest reaching 300–400 m (980–1,310 ft) (350 m (1,150 ft) on average) named "Big Daddy" or "Crazy Dune", resting on a sandstone terrace. Wikipedia source
