Hikers camped for the night admire the Three Peaks of Lavaredo on awakening, Sesto, Dolomites, Trentino-Alto Adige, Italy, Europe

Chapman's Baobab, claimed to be the largest tree in Africa at 25 metres around, camped under and measured by early explorers Chapman, Baines, Livingstone and others. Makgadikgadi Pans National Park, Botswana, Africa

Chapman's Baobab, claimed to be the largest tree in Africa at 25 metres around, camped under and measured by early explorers Chapman, Baines, Livingstone and others. Makgadikgadi Pans National Park, Botswana, Africa

Camped on the edge of the Namib Desert at the Namtib Desert Lodge, Namibia, Africa

Camped in the Juphal valley in Dolpa, a remote region, Nepal, Asia

WIld camping on the GR5 trail or Grand Traverse des Alps near Refuge De Bellachat with views of the Mont Blanc, Chamonix, Haute Savoie, Auvergne-Rhone-Alpes, French Alps, France, Europe

Camped beside Lac Gentau with views of Pic du Midi d'Ossau on the GR10 trekking route in the French Pyrenees, Pyrenees Atlantiques, France, Europe

A view of the Matterhorn in the Swiss Alps from a tent while camped beside the Gorner glacier, Zermatt, Valais, Switzerland, Europe

Camped under the stars during the Hidden Valleys trek, Ladakh, India, Asia

Departure of the Sherpas, their head-torches leaving trails of light across the glacier on their way to Everest, Nepal, Himalayas, Asia

Taken on a freezing Christmas eve in the Manaslu region, Nepal, Himalayas, Asia

Camped beside the Gornergletscher at the foot of Monte Rosa, Zermatt, Valais, Switzerland, Europe

Tents glow from their inhabitants head torches in a camp perched among trees in Dolpa, a remote region of Nepal, Asia

Camped under the stars during the Hidden Valleys trek, Ladakh, India, Asia

Villagers waking in the early morning having camped overnight at the Sonepur Cattle Fair, Bihar, India, Asia

Camped at Samdo during the Manaslu circuit trek, Nepal, Himalayas, Asia

Camped along the banks of the Karnali River during a rafting trip, Nepal, Himalayas, Asia

Camped beside the Gorner Glacier in Switzerland with views of Monte Rosa in the distance, Zermatt, Valais, Switzerland, Europe

A man camped on the summit ridge after climbing Thunderbolt Ridge in Hogum Fork while on a backcountry ski tour in Little Cottonwood Canyon, Lone Peak Wilderness, Uinta-Wasatch-Cache National Forest, Salt Lake City, Utah.

A man camped on the summit ridge after climbing Thunderbolt Ridge in Hogum Fork while on a backcountry ski tour in Little Cottonwood Canyon, Lone Peak Wilderness, Uinta-Wasatch-Cache National Forest, Salt Lake City, Utah.