The Wakka Valley continues, even higher up, to have the same characteristics as before: it is relatively narrow, so that there is no room at the bottom for cultivation or villages-there is, in fact, only one more small oasis for as long as the valley maintains this character—and is monotonous both in form and colour, though always rather theatrical, with its lower walls of conglomerate broken up into gigantic towers and bastions and riddled with cups and cavities and grottoes.