Jerry Monkman / Lone hiker at sunrise on the Bold Coast trail in Cutler, Maine, USA, June 2009. Model released

Wild Wonders of Europe / Geslin / Male Stag beetle {Lucanus cervus} on a post with a hiker walking crossing a wooden bridge in the background, Codrii Reserve, Central Moldova, June 2009

Angelo Gandolfi / Hiker with a cat in a pouch, Cares Gorge, Picos de Europa National Park, Cantabria, Spain. July 2008.

Jerry Monkman / Hiker on the summit of Mount Monadnock, Monadnock State Park, New Hampshire, USA, August 2008

Jerry Monkman / Close up of hiker walking over a footbridge in autumn, near the Presumpscot River, Portland, Maine, USA. Model Released. October 2008

Jerry Monkman / A winter hiker's crampon equipped boot on Mount Clay above the Great Gulf, Gulfside Trail, Northern Presidential mountain range, White Mountains, New Hampshire, USA. Model Released. March 2008

Juan Carlos Munoz / Close up of foot of a hiker on the caldera rim of Los Gemelos, Santa Cruz Island, Galapagos, January 2009. Model released.

Inaki Relanzon / Hiker on path that is cut through the rock, Garganta del Cares, Picos de Europa NP, Leon, Spain, July 2000

Colin Monteath / Hiker looking at Mt Cook, known locally as Aoraki, from Malte-Brun, Southern Alps, New Zealand

Colin Monteath / Mt Sefton, climber at dawn above Mueller hut and cloud-filled Mueller Glacier, Mt Cook National Park, New Zealand

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

Colin Monteath / Mountaineer enjoying the view of Mt Everest and the Himalayan Mountains at sunset from Gokyo Ri, Khumbu, Nepal