I'd heard about the Uluru climb and its high level of difficulty. But when I arrived at the national landmark and aboriginal sacred site in Australia's Northern Territory, I stood at the head of the trail, watching people begin their climb, and didn't see much of an opportunity for a photo. So instead I drove a ways around the world's biggest rock, and found this side angle. Silhouetting the climbers against the midday blue sky gives the viewer a sense of the magnitude of climbing Uluru, of the challenge presented by the angle of ascent, by the sheer rock face, by the dry desert conditions of an area that's wet by rain as little as three days per year.