I have visited Grand Canyon of Arizona, USA once, many, many years ago. It was really "grand" to see such a beautiful and magnificient scenery, but I remember the tourists could only take a birds-eye view of the seemingly bottomless abysses from the highest steep of the cliff. (Maybe my memory is incorrect.)
Not in Grand Canyon of Wensu, Aksu City of Xinjiang. Tourists can drive into the valley to walk on the barren and rugged soil or climb onto the reddish cliffs as long as their feet are strong enough. Every tourist would appreciate such a nature miracle with awe and wonder. The photo album given in internet will tell you how admirable the miracle is, to which I am not able to describe myself with my pen.
PS The grotesque cliffs and the wide but sinuous paths in the valley made me think of a box-office Hollywood film 50 years ago(1969): Mackennas Gold(麥坎納淘金記). Well, it is highly recommendable.