Visitors to Sesriem hike up and down Dune 45 in the late afternoon. This dune, so named because it lies 45 km from Sesriem, rises nearly 500 feet above the valley floor and is one of the most accessible to climbers at Sesriem.In early morning and late afternoon, the dunes at Sesriem in the Namib-Naukluft Park, are breathtakingly beautiful. Patterned by, and shifting with, the wind, these dunes vary from brick red to apricot and forever change colour with the angle of the sun. The largest rise dramatically 1,000 feet above the surrounding plains and are said to be the largest dunes in the world; they are certainly the most picturesque.