Basque Coast from high viewpoint, Costa Vasca, Euskadi, Spain, Europe

High angle view of Corral de los Perros beach, Puchuncavi, Valparaiso Province, Valparaiso Region, Chile, South America

Ellery Creek Big Hole, Red Centre, Northern Territory, Australia

Victoria Falls on the Zambezi River in Zimbabwe, Africa

Victoria Falls on the Zambezi River in Zimbabwe, Africa

High cliffs rising to 400m at Latrabjarg, the largest bird colony in Europe, West Fjords region (Vestfirdir), Iceland, Polar Regions

Lower Falls of Yellowstone River, 94m high at head of canyon, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America (U.S.A.), North America

High cliffs rising to 400m at Latrabjarg, the largest bird colony in Europe, West Fjords region (Vestfirdir), Iceland, Polar Regions

Cliffs of Wadi Saydran, below Jabal Shams, abandoned village of Sap Bani Khamis is on ledges above the large overhang, high point of Jabal Akhdar mountains, northern Oman, Middle East

Sheer cliffs 75m high of old red sandstone conglomerate, RSPB's Fowlsheug Bird and Nature Reserve, Crawton, Aberdeenshire, Scotland, United Kingdom, Europe

View from high point on the wild Basque coast, Euskadi, Spain, Europe

High cliffs and sea stack, Parque Natural do Sudoeste Alentejano e Costa Vicentina, Arrifana, near Aljezur, Algarve, Portugal, Europe

Limestone escarpments above Escuain gorge with snow covered high Pyrenees peaks in the background, Huesca, Aragon, Spain, Europe

Whitehaven harbour during the January 2014 period of storm surge, high tides and storm force winds. The coastline took a battering, damaging the harbour wall and eroding a large section of coastal cliff.

Whitehaven harbour being completely overwhelmed by huge waves during the January 2014 period of storm surge, high tides and storm force winds. The coastline took a battering, damaging the harbour wall and eroding a large section of coastal cliff.

Waves crashing off Parton near Whitehaven during the January 2014 period of storm surge, high tides and storm force winds. The coastline took a battering, damaging the harbour wall and eroding a large section of coastal cliff.

Whitehaven harbour during the January 2014 period of storm surge, high tides and storm force winds. The coastline took a battering, damaging the harbour wall and eroding a large section of coastal cliff.

El capitan with climbers barely visible in Yosemite National Park, California, USA.

El Capitan probably the most famous climbing wall in Yosemite National Park, California, USA.

El Capitan, the most famous big wall in the Yosemite Valley, California, USA.

El Capitan, the most famous big wall in the Yosemite Valley, California, USA.

High tide, Marloes Sands, Marloes, Pembrokeshire, Wales, UK, Europe

Marloes Sands at high tide, Marloes, Pembrokeshire, Wales, UK, Europe

Aerial views of El Castillo and the Ruins of the Mayan temple grounds at Tulum, Quintana Roo, Yucatan, Mexico. Tulum is the site of a pre-Columbian Mayan walled city which served as a major port for Coba, in the Mexican state of Quintana Roo. The ruins are situated on 12 meter 39 ft tall cliffs along the east coast of the Yucatán Peninsula on the Caribbean Sea in the state of Quintana Roo, Mexico. Tulum was one of the last cities built and inhabited by the Maya; it was at its height between the 13th and 15th centuries and managed to survive about 70 years after the Spanish began occupying Mexico. Old World diseases brought by the Spanish settlers appear to have resulted in very high fatalities, disrupting the society, and eventually causing the city to be abandoned.

Faraglioni rocks and coastline, Capri, Italy

Via Krupp, Capri, Italy

Balcon de Pilatos viewpoint in winter. Urbasa-Andia Natural Park. Navarre, Spain, Europe

Gorge and river with decidual forest in autumn. Arbayun gorge. Navarre, Spain, Europe.

Aerial views of El Castillo and the Ruins of the Mayan temple grounds at Tulum, Quintana Roo, Yucatan, Mexico. Tulum is the site of a pre-Columbian Mayan walled city which served as a major port for Coba, in the Mexican state of Quintana Roo. The ruins are situated on 12 meter 39 ft tall cliffs along the east coast of the Yucatán Peninsula on the Caribbean Sea in the state of Quintana Roo, Mexico. Tulum was one of the last cities built and inhabited by the Maya; it was at its height between the 13th and 15th centuries and managed to survive about 70 years after the Spanish began occupying Mexico. Old World diseases brought by the Spanish settlers appear to have resulted in very high fatalities, disrupting the society, and eventually causing the city to be abandoned.

Panorama of La Graciosa Island with Caleta del Sebo town, from Mirador del Rio. Lanzarote, Canary Islands, Spain

Gorge and river with decidual forest in autumn. Arbayun gorge. Navarre, Spain, Europe.

USA, California, Stinson Beach, High angle view of wooden steps leading down to the beach

High angle view of rock formations, Grand Canyon, Grand Canyon National Park, Arizona, USA

High angle view of a coastline, Durdle Door, East Lulworth, England

High angle view of a canyon, Dead Horse Point State Park, Utah, USA

High angle view of a valley, Grand Valley, Book Cliffs, Colorado National Monument, Colorado, USA

photographer Karl Johaentges with backpack and camera bag, vertical stone cliffs, Taoist mountain, Hua Shan, Shaanxi province, Taoist mountain, China, Asia

Taoist hermit monk prays at his altar, cliff hermiatge, Hua Shan, Shaanxi province, Taoist mountain, China, Asia

Evening hike in the high mountains, Switzerland, mountains, mountaineering,

chains and planks, vertical stone cliffs, Taoist mountain, Hua Shan, Shaanxi province, Taoist mountain, China, Asia

vertical stone cliffs, Taoist mountain, Hua Shan, Shaanxi province, Taoist mountain, China, Asia

viewing platform near Jinding Monastery, clouds, summit of Emei Shan mountains, Sacrifice Cliff, China, Asia, World Heritage Site, UNESCO

High angle view at rocky coast and ocean, Cliffs of Croaghaun, Achill Head, Achill Island, County Mayo, West coast, Ireland, Europe

View at the town Sisteron between the river Durance and high limestone cliffs, Alpes-de-Haute-Provence, Provence, France

Young cliff jumper on the beach on the Promenade des Anglais in Nice, Côte d\'Azur, Southern France, France, Europe

Aerial view, Seljalandsfoss waterfall on the edge of the highlands of Iceland, Europe

After the jump of a cliff jumper on the beach on the Promenade des Anglais in Nice, Cote d'Azur, Southern France, France, Europe

Beach, Playa Naturista Cantarrijan, Costa Tropical, Granada, Andalusia, Spain

Koh Nang Yuan viewed from above, near Ko Tao, Thailand, Southeast Asia

Khumbu glacier moraine with Taboche (6367), Cholatse (6335) and Arakamtse (6423), Khumbu Himal, Sagarmatha National Park, Nepal

The Castle Swallow Nest at the Cape Air-Todor, Jalta, Crimea, Ukraine, South-Easteurope, Europe,

The Castle Swallow Nest at the Cape Air-Todor, Jalta, Crimea, Ukraine, South-Easteurope, Europe,

Aerial view of Mt. Kilimanjaro 19335 ft. or 5895 m, spectacular ice cliffs of the Eastern Icefield, Tanzania, Africa

Praia do Camilo near Lagos, Algarve, Portugal, Europe

Praia do Camilo near Lagos, Algarve, Portugal, Europe

Mons Klint chalk cliffs, Mon Island, Denmark, Europe

Mons Klint chalk cliffs, Mon Island, Denmark, Europe

View from Kalura Sporthotel into Kalura Bay near Cefalu, Province of Palermo, Sicily, Italy, Europe

Anthony Quinn Bay, Rhodes island, east coast, Greece, Aegean Sea, Southern Europe, Europe

Chamarel waterfall, Mauritius, Africa

Tourboat at Neptune Grotto, Grotta di Nettuno, Parco Naturale Regionale di Porto Conto, near Alghero, Sardinia, Italy, Europe

Beacht at the Banyan Tree Hotel on the Anse Intendance beach, Mahé Island, Seychelles, Indian Ocean, Africa

Na Pali Coast, Na Pali Coast State Park, Kauai, Hawaii, USA, North America

Andean Condor (Vultur gryphus) flying over high cliffs, Coyhaique Alto, Aysen Region, Patagonia, Chile, South America

Carrick-a-Rede suspension bridge, connecting the mainland with Carrick Island, County Antrim, Ulster, Northern Ireland, United Kingdom, Europe

Bridge Puente Nuevo with waterfall at steep cliffs, Tajo gorge and river Rio Guadalevin, Ronda, province of Malaga, Andalusia, Spain, Europe

Preikestolen cliff above Lysefjord, Rogaland, Norway, Scandinavia, Europe

Church of San Rocco e San Francesco di Paola and houses with a sea view underneath the coastal cliffs, Pizzo, Vibo Valentia, Calabria, Tyrrhenian Sea, South Italy, Italy, Europe

A typical set of dramatic high cliffs line the edge of Juguang island on the Matsu islands in Taiwan

The Minack Theater, open-air, Porthcurno, Cornwall, England, United Kingdom, Europe

Church of San Rocco e San Francesco di Paola and houses with a sea view underneath the coastal cliffs, Pizzo, Vibo Valentia, Calabria, Tyrrhenian Sea, South Italy, Italy, Europe

Cliffs at Praia Do Carvalho, Carvalho Beach, Carvoeiro, Lagoa, Algarve, Portugal, Europe

Trekking Lodge at Gorak Shep with Nuptse (7861), Mount Everest Region, Sagarmatha National Park, Khumbu, Nepal

Camp, tent and canoe on a gravel bar, high cut bank, river cliff, erosion, behind, upper Liard River, Yukon Territory, Canada

Sunrise at Wissower Klinken on Ruegen Island , Mecklenburg-Western Pomerania, Germany

Mons Klint chalk cliffs, Mon Island, Denmark, Europe

Andean Condor (Vultur gryphus) flying over high cliffs, Coyhaique Alto, Aysen Region, Patagonia, Chile, South America

Steep cliff with arch of rock and small sandy beach, Cape Farewell, Tasman Sea, Puponga, North Island, New Zealand, Oceania

Aerial view, Seljalandsfoss waterfall falls from high cliff, green grass landscape, South Iceland, Iceland, Europe

Mons Klint chalk cliffs, Mon Island, Denmark, Europe

Multistorey appartement buildings near Rawsheh or Pigeon Rocks, Beirut, Beyrouth, Lebanon, Middle East, West Asia

Coast at Ponte Maloopa, Mahé Island, Seychelles, Indian Ocean, Africa

Beliche Beach next to Sagres, Saint Vincent Cape, Algarve, Portugal, Europe

View from Kalura Sporthotel into Kalura Bay near Cefalu, Province of Palermo, Sicily, Italy, Europe

Durdle Door Arch, Lulworth, Dorset, southern England, England, United Kingdom, Europe

Lighthouse at Cape Arkona, Wittow peninsula, Rügen, Baltic coast, Mecklenburg-Western Pomerania, Germany, Europe

Trekking, stone arch, Wadi Rum, Jordan, Asia

Aerial view, Seljalandsfoss waterfall on the edge of the highlands of Iceland, Europe

Chola Tsho lake at Chola Khola valley in front of Arakamtse (6423), Khumbu Himal, Sagarmatha Nationalpark, Nepal

Houses with a sea view underneath the coastal cliffs, Pizzo, Vibo Valentia, Calabria, Tyrrhenian Sea, South Italy, Italy, Europe

Church of San Rocco e San Francesco di Paola and houses with a sea view underneath the coastal cliffs, Pizzo, Vibo Valentia, Calabria, Tyrrhenian Sea, South Italy, Italy, Europe

Loch Ard Gorge, Port Campbell National Park, Victoria, Australia

Beliche Beach next to Sagres, Saint Vincent Cape, Algarve, Portugal, Europe

Khumbu glacier moraine with Cholatse (6335) and Arakamtse (6423), Khumbu Himal, Sagarmatha National Park, Nepal

Granite rocks and tropical vegetation, Mahe Island, Seychelles, Africa, Indian Ocean

The Castle Swallow Nest at the Cape Air-Todor, Jalta, Crimea, Ukraine, South-Easteurope, Europe,

Prussia Cove, Cornwall, England, United Kingdom, Europe

Khumbu glacier moraine with Pumori (7161), Khumbu Himal, Sagarmatha National Park, Nepal

The Castle Swallow Nest at the Cape Air-Todor, Jalta, Crimea, Ukraine, South-Easteurope, Europe,

Cho La Pass (5330), Khumbu Himal, Sagarmatha National Park, Nepal