Cheryl-Samantha Owen / West Coast Rock Lobster (Jasus lalandii) observed by diver. Kalk Bay, Atlantic Ocean, False Bay, Valsebaai, Western Cape, South Africa

Jerry Monkman / A man climbs "Top of the Prow" rock on Cathedral Ledge. Echo Lake State Park, White Mountains, in North Conway, New Hampshire, USA. October 2009, Model released

Jerry Monkman / A man climbs "Top of the Prow" rock on Cathedral Ledge. Echo Lake State Park, White Mountains, in North Conway, New Hampshire, USA. October 2009, Model released

Jerry Monkman / A man rock climbing near the top of Cathedral Ledge. Echo Lake State Park, White Mountains, in North Conway, New Hampshire, USA. October 2009, Model released

Jeff Vanuga / Snowmobiling in the Bridger - Teton National Forest on Togwotee Pass near Dubois, Wyoming. Model released, January 2009

Jeff Vanuga / Snowmobiling in the Bridger - Teton National Forest on Togwotee Pass near Dubois, Wyoming. Model released, January 2009

Michael Pitts / Diver on examining 6'' howitzer on the wreck of the S.S. Serrana. Sunk by UB-35 on the 23 January 1918. Eastern Solent, England, August 2013.

Michael Pitts / Green Turtle (Chelonia mydas) hatchling swimming, with photographer, from Karan Island, Saudi Arabia.

Franco Banfi / Scuba diver photographing Green anaconda (Eunectes murinus) Formoso River, Bonito, Mato Grosso do Sul, Brazil

Peter Cairns / Tourist on snowmobile travelling through Yellowstone National Park, Wyoming, USA, January 2013.

Jean E. Roche / Man in kite buggy on beach, St Louis du Rhone, Camargue, France, October 2012.

Jean E. Roche / Man in kite buggy on beach, St Louis du Rhone, Camargue, France, October 2012.

Ernie Janes / Giant Hogweed (Heraculum mantegazziamum) growing near the sea, with woman walking dog in distance, Norfolk, England, July 2013.

Ernie Janes / Group of hikers walking though cereal crop, England, UK

Ernie Janes / Fly fishermen fishing for Mackerel off Cley Beach at sunset, Norfolk, August 2013.

Ernie Janes / Man walking dogs on Dunwich beach, Suffolk, August.

Wild Wonders of Europe / Lundgren / Pool Frog (Pelophylax lessonae) jumping onto photographer Magnus Lundgren, Crisan, Danube Delta, Romania, June 2013.

Ernie Janes / Hiker on a path looking over Muker Village, Swaledale, Yorkshire Dales National Park, Yorkshire, England, UK, November 2011

Chris & Monique Fallows / Great white shark (Carcharodon carcharias) with free diving cameraman, Guadalupe Island, Mexico, September.

Will Watson / Walkers on a public footpath entering field with bullocks and heifers, Lower Brockampton, National Trust, Herefordshire, England.

Will Watson / Walkers on public footpath about to enter field with bullocks, Lower Brockhampton parkland, Herefordshire, England, May 2013.

Gary K. Smith / Woman walker enjoying the view to Rubha Nan Gall Lighthouse, North of Tobermory, Isle of Mull, Scotland, UK, May 2013.

Gary K. Smith / Walkers on the road beside Loch Na Keal, Isle of Mull, Inner Hebrides, Scotland, May 2013.

Michele Westmorland / Dive master helping guest diver check equipment. Galapagos Aggressor live-aboard dive boat, Galapagos Islands. September 2011. Property and model released.

Michele Westmorland / Divemaster giving dive briefing to scuba divers. Galapagos Islands, January 2012. Model released.

Michele Westmorland / Crew member filling scuba diving tanks. Galapagos Islands, January 2012. Model released.

Michele Westmorland / Diver and Green sea turtle (Chelonia mydas) Galapagos Islands. Model released.

Michele Westmorland / Scuba divers traveling to dive site aboard inflatable boat,, Galapagos Islands, September 2011. Property and model released.

Michele Westmorland / Scuba divers travelling to dive site aboard inflatable boat, Galapagos Islands, September 2011. Property and model released.

Michele Westmorland / Scuba divers travelling to dive site aboard inflatable boat from the Galapagos Aggressor live-aboard dive boat, Galapagos Islands. September 2011. Property and model released.

Michele Westmorland / Scuba divers travelling to dive site aboard inflatable boat, Galapagos Islands, September 2011. Property and model released.

Michele Westmorland / Scuba divers traveling to dive site aboard inflatable boat,, Galapagos Islands, September 2011. Property and model released.

Michele Westmorland / Dive master checking equipment and divers and giving the OK signal. Galapagos Aggressor live-aboard dive boat, Galapagos Islands. September 2011. Property and model released.

Michele Westmorland / Diver filming Spotted Eagle Rays (Aetobatus narinari) Darwin Island and Arch, Galapagos, September 2011. Model released.

Michele Westmorland / Scuba divers traveling to dive site aboard inflatable boat,, Galapagos Islands, September 2011. Model released.

Michele Westmorland / Diver with large school of Bigeye jack (Caranx sexfasciatus) Galapagos Islands, January 2012. Model released.

Michele Westmorland / MR Female diver with green sea turtle (Chelonia mydas) Galapagos Islands..

Michele Westmorland / Diver swimming over reef structure. Panamic Cushion Sea Star (Pentaceraster cumingi) Galapagos Islands.

Michele Westmorland / Scuba divers in inflatable going to dive site. Galapagos Islands, model released.

Michele Westmorland / Scuba divers traveling to dive site aboard inflatable boat,, Galapagos Islands, September 2011. Model released.

Cheryl-Samantha Owen / Hikers on the start of the West Coast Trail at the mouth of the Gordon River, near Port Renfrew. Vancouver Island, British Columbia, Canada, July.

Cheryl-Samantha Owen / Woman walking over a fallen tree trunk in old growth forest of Red cedar trees (Thuja plicata) and Douglas fir trees (Pseudotsuga menziesii) Avatar Grove, near Port Renfrew, Vancouver Island, Canada,...

Kirkendall-Spring / Man climbing the Screaming Yellow Zonkers route in Smith Rocks State Park, Oregon, May 2013. Model released.

Kirkendall-Spring / Woman climbing the Screaming Yellow Zonkers route in Smith Rocks State Park, Oregon. May 2013. Model released.

Kirkendall-Spring / Man climbing the Screaming Yellow Zonkers route in Smith Rocks State Park, Oregon, May 2013. Model released.

Kirkendall-Spring / Man climbing the Screaming Yellow Zonkers route in Smith Rocks State Park, Oregon, May 2013. Model released.

Kirkendall-Spring / Woman climbing the Screaming Yellow Zonkers route in Smith Rocks State Park, Oregon. May 2013. Model released.

Kirkendall-Spring / Hikers walking at Smith Rocks State Park, Oregon, USA. May 2013.

Kirkendall-Spring / Hiker on Cougar Divide in the Mount Baker Wilderness with Mount Baker in the distance, Baker-Snoqualmie National Forest. Washington, USA, August 2013. Model released.

Kirkendall-Spring / Man fly fishing on the Middle Fork of the Snoqualme River near North Bend, Washington, USA, July 2013. Model released.

Kirkendall-Spring / Climber on Mount Rainier with Mount Adams in the distance, Mount Rainier National Park, Washington, USA. Model Released.

Kirkendall-Spring / Man fly fishing on the Middle Fork of the Snoqualme River near North Bend, Washington, USA, July 2013. Model released.

Kirkendall-Spring / Man kayak fishing on a foggy morning in the Strait of Juan de Fuca, Washington, USA, August 2013.

Kirkendall-Spring / Man fly fishing on the Middle Fork of the Snoqualme River near North Bend, Washington, USA, July 2013. Model released.

Kirkendall-Spring / Man fly fishing on the Middle Fork of the Snoqualme River near North Bend, Washington, USA, July 2013. Model released.

Kirkendall-Spring / Man hiking on the Pike Creek Trail in the Steens Mountains Wilderness, Oregon, USA, May 2013. Model released.

Kirkendall-Spring / Man hiking on the Pike Creek Trail in the Steens Mountains Wilderness, Oregon, USA, May 2013. Model released.

Kirkendall-Spring / Men kayak fishing on a foggy morning in the Strait of Juan de Fuca, Washington, USA, August 2013. Model released.

Kirkendall-Spring / Climber silhouetted on Mount Rainier with Mount Adams in the distance, Mount Rainier National Park, Washington, USA. Model Released.

Kirkendall-Spring / Fly fishing gear and kayak along the shore of the Strait of Juan de Fuca, Washington, USA, July 2013.

Kirkendall-Spring / Man with Black rockfish (Sebastes melanops) caught with a fly rod in the Strait of Juan de Fuca. Washington, USA. July 2013. Model released.

Kirkendall-Spring / Backpacker above Lake Solitude near Paintbrush Divide in Grand Teton National Park, Wyoming, July 2013. Model released.

Kirkendall-Spring / Man with Black rockfish (Sebastes melanops) caught with a fly rod in the Strait of Juan de Fuca. Washington, USA. August 2013. Model released.

Kirkendall-Spring / Close up on mountain biker's foot pedalling, in Cascade foothills, Washington, USA. April 2013.

Kirkendall-Spring / Man in kayak fishing with his home made bamboo fly rod on a foggy morning in the Strait of Juan de Fuca, Washington, USA, August 2013.

Chris & Monique Fallows / Great white shark (Carcharodon carcharias) with free diving cameraman, Guadalupe Island, Mexico.

Chris & Monique Fallows / Great white shark (Carcharodon carcharias) investigating cage diver, Seal Island, False Bay, South Africa.

Floris van Breugel / Traditional rock climber places a cam in Poison Ivy Crack, near Leavenworth, Washington, June 2013. Model Released

Alex Mustard / Mediterranean anthias (Anthias anthias) swarm over gorgonians (Paramuricea clavata). Marine Protected Area of Portofino (Area Marina Protetta, Portofino), Liguria, Italy. Mediterranean Sea. Model Rele...

Alex Mustard / A diver photographs in a giant kelp forest (Macrocystis pyrifera). Fortescue Bay, Tasmania, Australia. Tasman Sea. This is the same species of giant kelp which is widespread on the Pacific coast of No...

Alex Mustard / Snorkeller photographed silhouetted against the surface of Three Sisters Spring, Crystal River, Florida, USA, in the early morning.

Alex Mustard / A diver explores the peat stained waters of the River Orchy, Highlands, Scotland, UK.

Alex Mustard / Divers watch a Tassled wobbegong shark (Eucrossorhinus dasypogon) as it swims over Coral reef. Raja Ampat, West Papua, Indonesia. Tropical West Pacific Ocean.

Alex Mustard / A diver explores Chac Mool Cenote. Puerto Aventuras, Quintana Roo, Mexico.

Alex Mustard / A diver explores Chac Mool Cenote (or sinkhole) Puerto Aventuras, Quintana Roo, Mexico.

Alex Mustard / Diver photographs mediaeval mill building, now flooded in Capodacqua lake. Gran Sasso National Park, Abruzzo, Italy.

Alex Mustard / Diver explores the Nes Canyon, a fault filled with fresh water in the rift valley between the Eurasian and American tectonic plates in northern Iceland. May 2011.

Alex Mustard / Diver in Nes Canyon, a fault filled with fresh water in the rift valley between the Eurasian and American tectonic plates in northern Iceland.

Alex Mustard / A distant diver explores Nes Canyon, a fault filled with fresh water in the rift valley between the Eurasian and American tectonic plates in northern Iceland.

Alex Mustard / A diver swimming in the cold, clear waters of the Blue Lagoon at Silfraa, with tectonically fractured volcanic rocks in the foreground. Thingvellir National Park, Iceland. May 2011.

Alex Mustard / A diver explores a fault at Silfra Canyon. Thingvellir National Park, Iceland. May 2011.

Alex Mustard / A diver explores Silfra Canyon, a deep fault filled with fresh water in the rift valley between the Eurasian and American tectonic plates at Thingvellir National Park, Iceland. May 2011. In this phot...

Alex Mustard / A diver explores Silfra Canyon, a deep fault filled with fresh water in the rift valley between the Eurasian and American tectonic plates at Thingvellir National Park, Iceland. May 2011. In this phot...

Alex Mustard / A diver explores Silfra Canyon, a deep fault filled with fresh water in the rift valley between the Eurasian and American tectonic plates at Thingvellir National Park, Iceland. May 2011. In this phot...

Alex Mustard / A diver explores Silfra Canyon, a deep fault filled with fresh water in the rift valley between the Eurasian and American tectonic plates at Thingvellir National Park, Iceland. May 2011. In this phot...

Alex Mustard / Pair of divers floating in Silfra Canyon, a deep fault filled with fresh water in the rift valley between the Eurasian and American tectonic plates) at Thingvellir National Park, Iceland. May 2011. I...

Alex Mustard / A diver explores Nes Canyon, a fault filled with fresh water in the rift valley between the Eurasian and American tectonic plates in northern Iceland. May 2011.

Alex Mustard / A diver explores Nes Canyon, a fault filled with fresh water in the rift valley between the Eurasian and American tectonic plates in northern Iceland. May 2011.

Alex Mustard / A diver explores Silfra Canyon, deep fault filled with fresh water in the rift valley between the Eurasian and American tectonic plates) at Thingvellir National Park, Iceland. May 2011. In this photo...

Alex Mustard / A diver explores Nikulasargj Canyon, deep fault filled with fresh water in the rift valley between the Eurasian and American tectonic plates, at Thingvellir National Park, Iceland. May 2011. In this p...

Alex Mustard / Diver explores fractures in the volcanic rocks within the Blue lagoon off Silfra Canyon in Thingvillir National Park, Iceland. May 2011.

Alex Mustard / Diver swimming through Silfra Canyon, a deep fault filled with fresh water in the rift valley between the Eurasian and American tectonic plates, at Thingvellir National Park, Iceland. May 2011. In thi...

Alex Mustard / Diver submerges into Silfra Canyon, a deep fault filled with fresh water in the rift valley between the Eurasian and American tectonic plates at Thingvellir National Park, Iceland. May 2011. In this p...

Alex Mustard / Diver explores Nikulasargj Canyon, a deep fault filled with fresh water in the rift valley between the Eurasian and American tectonic plates at Thingvellir National Park, Iceland. May 2011. In this ph...

Alex Mustard / A diver explores Nikulasargj Canyon,a deep fault filled with fresh water in the rift valley between the Eurasian and American tectonic plates, at Thingvellir National Park, Iceland. May 2011. In this...

Alex Mustard / Diver explores Nikulasargj Canyon, deep fault filled with fresh water in the rift valley between the Eurasian and American tectonic plates at Thingvellir National Park, Iceland. May 2011. In this phot...