Duz is a desert city, where everything is desolate and a life-limiting area. It looks like rock in the distance, but it is actually a fine sand grain or weathered accumulation, in different shapes, under the blue sky, the color is more charming. The picture of the yellow sand, riding a camel in the sand sea, is really beautiful, the camel caravan in the thousand and one nights was presented by everyone, this is the original Sahara.