Yva Momatiuk & John Eastcott / Waterfall and peak, Fitzroy Massif, Los Glaciares National Park, Patagonia, Argentina

Yva Momatiuk & John Eastcott / Waterfall and peak, Fitzroy Massif, Los Glaciares National Park, Patagonia, Argentina

Thomas Marent / Cascades of the Iguacu Falls, the world's largest waterfalls, Iguacu National Park, Argentina

Colin Monteath / East Face of Cerro Torre, Los Glaciares National Park, Patagonia, Argentina

Colin Monteath / Cerro Torre and Fitzroy reflected in small pond at dawn, Loma Plieque Tumbado, Los Glaciares National Park, Patagonia, Argentina

Colin Monteath / Hiker, Cerro Torre and Fitzroy reflected in small pond at dawn, Loma Plieque Tumbado, Los Glaciares National Park, Patagonia, Argentina

Tui De Roy / Glacier tumbling down from granite peaks, Los Glaciares National Park, Patagonia, Argentina

Tui De Roy / Fitzroy Massif with sunrise glow on high granite spires, Los Glaciares National Park, Argentina

Tui De Roy / Perito Moreno Glacier actively advancing into Lake Argentina, Los Glaciares National Park, Argentina

Flip Nicklin / Southern Right Whale (Eubalaena australis) underwater portrait, Argentina

Robert Fulton / Aerial view of glacier near Lago Argentino, Argentina

Agustin Esmoris / Roseate Spoonbill (Platalea ajaja) juvenile, Argentina