A guide sits beside sheer cliff walls and terraces carved by erosion in a massive desert canyon. Wadi Ghul, Jebel Shams, Al Hajar Mountains, Sultanate of Oman.

A guide sits beside sheer cliff walls and terraces carved by erosion in a massive desert canyon. Wadi Ghul, Jebel Shams, Al Hajar Mountains, Sultanate of Oman.
