The main south-facing wall of Todra hosts over 150 bolted sport-climbing routes, ranging from gentle slabs suitable for beginners to demanding overhangs at 7c+. For photographers this is a gift: a human figure on those massive walls gives the image scale in a way that a bare cliff rarely achieves. A figure halfway up a 100-metre route, chalk on their hands, rope trailing down — the eye goes there instantly.
The technique that works best is positioning yourself low and to the left (north-west) of the main face during the direct-light window, and shooting upward with a telephoto compressed against the sky. If you shoot during overcast conditions — which produce no harsh shadows on the limestone — you can expose for the bright sky and silhouette the climber. Either approach is valid; what to avoid is a telephoto angle that places the climber against the rock wall itself, because the contrast between figure and background almost always becomes muddy.
Climbers are most reliably present from mid-March through May and again September through November. During high summer the south wall exceeds 50°C by late morning and is effectively unclimbable. If you are specifically chasing action shots, weekend mornings in October see the highest concentration of serious climbers — many are French and Spanish, arriving from Tinghir or from climbing camps near the gorge. A polite inquiry the evening before, at the cafés near the gorge entrance, will tell you whether groups are expected on the wall the next morning.