A climber makes her way down an ice wall in preparation for climbing Everest, Himalayas, Nepal, Asia

A red panda goes down from a tree in a wildlife reserve of India where these animals are protected from poachers, Darjeeling, India, Asia

Black bear (Ursus americanus) sow and cub-of-the-year coming down from a tree, Yellowstone National Park, Wyoming, United States of America, North America

Black bear (Ursus americanus) sow and two cubs-of-the-year, one nursing and one coming down from a tree, Yellowstone National Park, Wyoming, United States of America, North America

A climber makes her way down an ice wall in preparation for climbing Everest, Khumbu Region, Nepal, Asia

Tourists at Tomb of Khai Dinh, UNESCO World Heritage Site, Hue, Thua Thien-Hue, Vietnam, Indochina, Southeast Asia, Asia

Black bear (Ursus americanus) coming down from a tree, Yellowstone National Park, Wyoming, United States of America, North America

Rock climber in action in the Mourne Mountains, County Down, Ulster, Northern Ireland, United Kingdom, Europe

Woman rapelling down in slot canyon, canyoneering, Moab, Utah, United States of America, North America

Man rapelling down in slot canyon, canyoneering, Moab, Utah, United States of America, North America

Woman rapelling down a giant arch, canyoneering, Moab, Utah, United States of America, North America

Woman rapelling down a giant arch, canyoneering, Moab, Utah, United States of America, North America

An adult leopard (Panthera pardus) climbing down a tree in the Okavango Delta, Botswana, Africa

Woman rapelling down in slot canyon, canyoneering, Moab, Utah, United States of America, North America

Tourist climbing down front of Temple One, Tikal, UNESCO World Heritage Site, Guatemala, Central America

Tourist climbing up and down steps to visit the lighthouse at Cape Point, Cape Town, South Africa, africa

A man climbing down into a channel between the limestone karsts of the Grand Tsingy in Tsingy de Bemaraha National Park, UNESCO World Heritage Site, western Madagascar, Madagascar, Africa

Tourists climbing down Mount Kinabalu. Kinabalu National Park, Sabah, Borneo, Asia

Members of Langdale Ambleside Mountain Rescue Team lower a stretcher down a crag as part of a training exercise, Lake District, Cumbria, England, United Kingdom, Europe

Members of Langdale Ambleside Mountain Rescue Team lower a stretcher down a crag as part of a training exercise, Lake District, Cumbria, England, United Kingdom, Europe

Members of Langdale Ambleside Mountain Rescue Team lower a stretcher down a crag as part of a training exercise, Lake District, Cumbria, England, United Kingdom, Europe

Members of Langdale Ambleside Mountain Rescue Team lower a stretcher down a crag as part of a training exercise, Lake District, Cumbria, England, United Kingdom, Europe

A man abseiling down a cliff in the Lake District, Cumbria, England, United Kingdom, Europe

A climber jumping down a crag on Harter Fell at sunset, Lake District, Cumbria, England, United Kingdom, Europe

A climber jumping down a crag on Harter Fell at sunset, Lake District, Cumbria, England, United Kingdom, Europe

A climber jumping down a crag on Harter Fell at sunset, Lake District, Cumbria, England, United Kingdom, Europe

A climber leaping down a crag on Harter Fell at sunset, Lake District, Cumbria, England, United Kingdom, Europe

Caucasian climber throwing rope down mountainside

Ice Climbing in Pyha, Lapland, Finland

Ice Climbing in Pyha, Lapland, Finland

Rock climber rapelling down from an overhang of the summit of Kampenwand, view towards Tyrol, Chiemgau, Upper Bavaria, Bavaria, Germany

Looking down on the multi-pitch route on Leonhardstein, Bavarian Prealps

Mountain Guide climbing down the metal steps, morning light, Oberaarjoch hut, Wallis, Switzerland

Man climbing, descending down a waterfall. Lake Sylvenstein, Upper Bavaria, Bavaria, Germany

Wild Tiger (Panthera tigris) looking down from a tree in Ranthambore National Park, Rajasthan, India, Asia

Steps down the cliffs of Jons Kapel near Hasle, Bornholm, Denmark, Europe

Menlo Castle ruin, County Galway, Republic of Ireland, Europe

Rockhopper Penguin (Eudyptes chrysocome), subspecies western rockhopper penguin (Eudyptes chrysocome chrysocome). Climbing down the cliffs to jump into the sea. South America, Falkland Islands, January

Rockhopper Penguin (Eudyptes chrysocome), subspecies western rockhopper penguin (Eudyptes chrysocome chrysocome). Climbing down the cliffs to jump into the sea. South America, Falkland Islands, January

A mountain rescue technician is descending into a crevasse. When a skier breaks through the snow and tumbles down the glacier, the only way out is being winched out by the rescuers of Air Zermatt.

Two climbers dig out their tent after a snowstorm covered them in 14k camp on Mount McKinley, Alaska. Climbers are advised to spare no expense on a expedition-quality tent as it can mean the difference between life and death during a ferocious storm on Denali. Extra poles and repair materials are important in case of damage caused by storms. Plan to take extra pickets, wands or deadmen for tent anchors. Never leave a tent without anchoring it securely. Tents are lost each year due to sudden gusts of wind while the tent was left unattended or drying. Every climbing season High Mountain Rangers of the Denali National Park Service are called to help climbers in need. If possible the patient is brought down to base camp on foot, only in life threatening conditions a helicopter is called to evacuate the patient to a hospital in Anchorage.

A mountain ranger is digging out tents after a snowstorm covered them during the night in 14k camp on Mount McKinley, Alaska. Climbers are advised to spare no expense on a expedition-quality tent as it can mean the difference between life and death during a ferocious storm on Denali. Extra poles and repair materials are important in case of damage caused by storms. Plan to take extra pickets, wands or deadmen for tent anchors. Never leave a tent without anchoring it securely. Tents are lost each year due to sudden gusts of wind while the tent was left unattended or drying. Every climbing season High Mountain Rangers of the Denali National Park Service are called to help climbers in need. If possible the patient is brought down to base camp on foot, only in life threatening conditions a helicopter is called to evacuate the patient to a hospital in Anchorage.

High Mountain Rangers Tom Ditola and David Weber are taking a rest on the West Rib on Mount McKinley, Alaska. Mount Hunter in the background. They are above the clouds in blue sky and the sun is shining. Mount McKinley, native name Denali, is the highest mountain peak in North America, with a summit elevation of 20,321 feet (6,194 m) above sea level. At some 18,000 feet (5,500 m), the base-to-peak rise is considered the largest of any mountain situated entirely above sea level. Measured by topographic prominence, it is the third most prominent peak after Mount Everest and Aconcagua. Located in the Alaska Range in the interior of the U.S. state of Alaska, McKinley is the centerpiece of Denali National Park and Preserve. Every climbing season High Mountain Rangers of the Denali National Park Service are called to help climbers in need. If possible the patient is brought down to base camp on foot, only in life threatening conditions a helicopter is called to evacuate the patient to a hospital in Anchorage.

Mountain ranger Brian Scheele on this way to Windy Corner on Mount McKinley, also know as Denali, in Alaska. He is pulling a sled, that together with his heavy backpack is containing all the gear like tents, clothing and food. Every climbing season High Mountain Rangers of the Denali National Park Service are called to help climbers in need. If possible the patient is brought down to Basecamp on foot, only in life threatening conditions a helicopter is called to evacuate the patient to a hospital in Anchorage. Mount McKinley, native name Denali, is the highest mountain peak in North America, with a summit elevation of 20,321 feet (6,194 m) above sea level. At some 18,000 feet (5,500 m), the base-to-peak rise is considered the largest of any mountain situated entirely above sea level. Measured by topographic prominence, it is the third most prominent peak after Mount Everest and Aconcagua. Located in the Alaska Range in the interior of the U.S. state of Alaska, McKinley is the centerpiece of Denali National Park and Preserve.

A girl rock being lowered down a cliff face after rock climbing on the Trad Wall, Isle of You, Cochise Stronghold, Tombstone, Arizona, USA

A woman wearing a red tank top crimps down on a small hold while climbing The Rapture (5.8) on Lower Gibraltar Rock in Santa Barbara, California. The Rapture is a very nice and unbelievably well protected route on the left arête of Lower Gibraltar Rock.

A girl rock being lowered down a cliff face after rock climbing on the Trad Wall, Isle of You, Cochise Stronghold, Tombstone, Arizona, USA

Man rappelling down canyon through waterfall in Utah.

Yon Lambert bears down on tiny holds on Pawing The Void (5.12b/c) on the Southwest face of Cedar Rock near Brevard, NC

Low Angle View Of Woman Climbing Down At The Via Ferrata Ivano Dibona

Women rock climber in yellow tank top hangs upside down while climbing a difficult rock climb.

A woman down climbing into pool with man in pool in sculpted slot canyon, Utah.

Tail of leopard (Panthera pardus) hangs down while climbing tree, Serengeti, Tanzania

View taken from behind of a person walking down a mountainside with a spectacular view of the Kusawa Lake below, Yukon, Canada

Brown Bear (Ursus Arctos) Leaning Out Over Rocky Slope, Cabarceno, Cantabria, Spain

Female Leopard (Panthera Pardus) Stares From Tree, Serengeti National Park, Tanzania

A female leopard, Panthera pardus, descending from a tree, Londolozi Wildlife Reserve, Sabi Sands, South Africa

A teenage girl lying down on rock formation at a desert site

Worker walking down stairs on an oil tank

Man rappeling down cliff