Juan Carlos Munoz / Tourists looking down onto underground stream, from illuminated pathway, Skocjan Caves, Green Karst, Slovenia, October 2014.

Hougaard Malan / Waterfall over deep, narrow gorge. Magwa Falls, Pondoland, Eastern Cape, South Africa. June 2012.

Konstantin Mikhailov / West Caucasian tur (Capra caucasica) Female on cliff face, Highlands of West Caucasus Mountains in the Bezengi area, Kabardino-Balkaria Republic, Kabardino-Balkarsky State Nature Reserve, Russia.

Andrew Parkinson / Fulmar (Fulmarus glacialis) rear view of bird hanging in air over steep cliffs, Shetland Islands, Scotland, UK. HIGHLY COMMENDED - Animals in their environment - Wildlife Photographer of the Year c...

Ashley Cooper / Climber on Stac Pollaidh in Assynt, Scotland, UK. September 2006.

Ashley Cooper / Walkers on the Tour Du Mont Blanc cross a suspension bridge across the meltwater river from the Bionnassay glacier; France. August 2014

Ashley Cooper / Mountaineer on a via ferrata bridge in the Italian Dolomites, Italy.

Ashley Cooper / A mountaineer on a summit in the Italian Dolomites. Italy.

Ashley Cooper / Climber i on Sgurr Alasdair on the Cuillin Ridge, Isle of Skye, Scotland. March 2006

Ashley Cooper / Members of Langdael Ambleside Mountain Rescue Team lowering a stretcher lowerm doing a stretcher lower down a crag in Langdale as part of training. UK. July 2006

Ashley Cooper / Man climbing on Great Gable in the Lake District, England, UK. July 2005

David Fleetham / Blacktip reef sharks (Carcharhinus melanopterus) over Vertigo reef, Yap, Micronesia.