The Namib Desert, after which the nation was named, has been present for around eighty million years. It's the oldest desert on the whole wide planet. This nation is also home to some of the world's tallest sand dunes. It is impossible to gain a precise measurement because they move according to the natural environment; however, Dube Seven, which is located near Walvis Bay, is believed to be the tallest at 383 metres. You should attempt to scale Big Daddy if you are interested in climbing one of the towering sand dunes. Its height is a little less at 325 metres, yet it is still feasible to go to the summit of this mountain.