Oscar Dewhurst / White-capped Dipper (Cinclus leucocephalus) feeding on a fast-flowing river, Colca Valley, Peru. 08/16. Cropped

Tui De Roy / Deeper than the Grand Canyon, Colca Canyon in Peru drops 3,400 meters from mountain top to river

Tui De Roy / Wildflowers blooming on the edge of Colca Canyon dropping 3,400 meters from mountaintop to Colca River (deeper than the Grand Canyon), Peru

Tui De Roy / Colca Canyon dropping 3,400 meters from mountaintop to Colca River (deeper than the Grand Canyon), Peru