Canyons are crevices in the earth that I see as an escape from the hot sun. Climb down a canyon and suddenly the environment around you is cool and quiet. Sesreim Canyon outside of Namib-Naukluft National Park is such an experience.
From the distance there isn’t anything to see, but pull into the car park and climb down that gorge and you will see. You will see ancient earth pulled apart by by geologic upheaval, you will see the trees and plants thriving in the coolness of the canyon, and you will feel the still, quiet air.