Tien Shan Mountains, Ala Archa Canyon, Kyrgyzstan, Central Asia

Tourist hiking the Colca Canyon trek, Peru, South America

Pedestrian suspension bridge leading through the gorge of Los Cahorros Monachil, Monachil, Sierra Nevada, Granada, Andalusia, Spain, Europe

Hiking trail in the arid gorge canyon landscape of Los Cahorros Monachil, Monachil, Sierra Nevada, Granada, Andalusia, Spain, Europe

View above Red Wall Bridge crossing Roaring Springs Canyon, North Kaibab Trail, Grand Canyon North Rim, UNESCO, Arizona, United States of America

The upper leg of the North Kaibab Trail at Grand Canyon North Rim, UNESCO, Arizona, United States of America

Majestic red rock walls in Kok-Moinok Canyon, Kyrgyzstan, Central Asia, Asia

Hikers return from Canyon base, Grand Canyon, UNESCO World Heritage Site, Arizona, United States of America, North America

Tourists on the rim of King's Canyon, Red Centre, Northern Territory, Australia

Hiking trail and hikers in the Canon de Anisclo (Anisclo Canyon), Ordesa y Monte Perdido National Park, Aragon, Spain, Europe

Hiking trail and hikers in the Canon de Anisclo (Anisclo Canyon), Ordesa y Monte Perdido National Park, Aragon, Spain, Europe

Mule trekking, Bryce Canyon National Park, Utah, United States of America (U.S.A.), North America

Tourist wearing helmet and backpack hiking in vintgar gorge, near bled, slovenia, making thumbs up sign by the radovna river

Man diving into La Salle Lake while hiking on a two-week trek of the Sierra High Route in the John Muir Wilderness in California. The 200-mile route roughly parallels the popular John Muir Trail through the Sierra Nevada Range of California from Kings Canyon National Park to Yosemite National Park.

Nepal, Upper Mustang, Rope Bridge, The bridge across the deep canyon near Ghyakar village.