Bugaboo Spire, Bugaboo Glacier Provincial Park, British Columbia, Canada

Looking across Capitol Reef

Front view of senior woman climbing Kilimanjaro, Arusha, Tanzania

Front view of senior woman climbing Kilimanjaro at scenic sunset, Arusha, Tanzania

Side view of senior woman climbing Kilimanjaro at scenic sunset, Arusha, Tanzania

Mountain climber climbing up Bugaboo Spire, Bugaboo Mountains, British Columbia, Canada

Mountain climber on one of Bugaboo Spires ridges, Bugaboo Mountains, British Columbia, Canada

Two women paddleboarding in Lake Powell, Utah, USA

Women trail running through Grand Staircase-Escalante National Monument, Utah, USA

Woman holding Moqui Marble, Grand Staircase-Escalante National Monument, Utah, USA

Side view of man sitting by fire at sunset, Mystery Towers, Utah, USA

Front view of senior man without shirt posing in desert, Mystery Towers, Utah, USA

Tents at camp under starry sky at night in Red Rock Canyon National Conservation Area, Nevada, USA

Senior couple hiking, Haute Route, Valais Canton, Switzerland

Senior couple hiking, Haute Route, Valais Canton, Switzerland

Senior couple hiking, Haute Route, Valais Canton, Switzerland

Senior woman hiking, Haute Route, Valais Canton, Switzerland

Senior couple hiking, Haute Route, Valais Canton, Switzerland

Senior couple hiking, Haute Route, Valais Canton, Switzerland

Senior couple hiking, Haute Route, Valais Canton, Switzerland

Senior couple hiking, Haute Route, Valais Canton, Switzerland

Senior couple hiking, Haute Route, Valais Canton, Switzerland

Hiker celebrating, Haute Route, Valais Canton, Switzerland

Hiker couple kissing, Haute Route, Valais Canton, Switzerland

Senior couple hiking, Haute Route, Valais Canton, Switzerland

Senior couple hiking, Haute Route, Valais Canton, Switzerland

Senior couple hiking, Haute Route, Valais Canton, Switzerland

Senior man hiking, Haute Route, Valais Canton, Switzerland

Senior woman hiking, Haute Route, Valais Canton, Switzerland

Senior couple hiking, Haute Route, Valais Canton, Switzerland

Senior couple hiking, Haute Route, Valais Canton, Switzerland

Senior couple hiking, Haute Route, Valais Canton, Switzerland

Senior couple hiking, Haute Route, Valais Canton, Switzerland

Senior couple hiking, Haute Route, Valais Canton, Switzerland

Senior woman approaching mountain hut, Haute Route, Valais Canton, Switzerland

Senior couple riding overhead cable car, Zermatt, Valais Canton, Switzerland

People making celebratory toast with champagne

Theodore Roosevelts Cabin, Grand Canyon, Arizona, USA

Landscape of canyon,  Grand Staircase-Escalante National Monument, Utah, USA

Stevens Arch and Escalante River, Utah, USA

Hiker walking among reeds along Hayduke Trail, Utah, USA

Backpacker in narrow canyon, Hayduke Trail, Utah, USA

Woman hiking in Grand Canyon, Arizona, USA

Female hiker crossing Little Colorado River, Grand Canyon, Arizona, USA

Woman with injured hand while hiking in Grand Canyon, Arizona, USA

Woman sitting on bank of Colorado River in Grand Canyon, Arizona, USA

Female hiker on mountainside in Grand Canyon, Arizona, USA

Hiker in Grand Canyon, Arizona, USA

Landscape with young woman standing on rock formation and contemplating turquoise water of Little Colorado River near its confluence with Colorado deep down in Grand Canyon, Grand Canyon, Arizona, USA

Young woman cooling off after hiking with her feet immersed in Colorado River, Grand Canyon, Arizona, USA

Young woman emerging from cold water of Colorado River after cooling off her feet, Grand Canyon, Arizona, USA

Young woman hiker traversing massive sandstone features of Grand Canyons North Rim, Grand Canyon, Arizona, USA

A Young Man Prepares To Leave Behind The Sun As He Enters The Long Narrows Of Buckskin Gulch

Climber standing in narrow space between rocks

Young Female Ski Mountaineer In Front Of Her Snow Cave

A Man Rock Climbing In Indian Creek, Monticello, Utah

A Young Woman Explores A Volcanic Cave In Lava Beds National Monument

A Young Woman Explores A Volcanic Cave In Lava Beds National Monument

Swayambhunath in early morning light

A young woman climber plays on the beautiful sandstone formations of Buckskin Gulch

Trailrunning at 15,000ft along a mountain lake on Bhutan's Snowman Trek

Mountain trails in Bhutan

Woman jumping with clouds and mountain peak in background

Mountain climber traversing Vowell Glacier at sunset, Bugaboo Mountains, British Columbia, Canada

Mountain climber traversing Vowell Glacier at sunset, Bugaboo Mountains, British Columbia, Canada

Smiling resting mountain climber, East Creek Basin Bivy, Bugaboo Mountains, British Columbia, Canada

Man rock climbing at Surfs Up in Bugaboo Mountains, British Columbia, Canada

Mountain climber in Bugaboo Mountains, British Columbia, Canada

Scenery with evergreen trees at sunset, Mono County, California, USA

Woman hiker taking break on slopes of Kilimanjaro, Arusha, Tanzania

Hikers on Charles Kuonen Suspension Bridge, Valais, Switzerland

Hikers on Charles Kuonen Suspension Bridge, Valais, Switzerland

Rear view of people walking on Worlds Longest Pedestrian Suspension Bridge during daytime, Randa, Wallis, Switzerland

Hikers on Charles Kuonen Suspension Bridge, Valais, Switzerland

Senior woman smiling on top of Kilimanjaro, Arusha, Tanzania

Mountain climber sitting near tent at mountain camp, Bugaboo Mountains, British Columbia, Canada

Mountain climber crossing Vowell Glacier, Bugaboo Mountains, British Columbia, Canada

Mountain climber eating breakfast while camping in tent, Bugaboo Mountains, British Columbia, Canada

Mountain climber standing near tent at mountain camp and holding sleeping bag, Bugaboo Mountains, British Columbia, Canada

Mountain climber contemplating next rappel in Bugaboo Mountains, British Columbia, Canada

Mountain climber climbing up Bugaboo Spire, Bugaboo Mountains, British Columbia, Canada

Mountain climber looking down at view from Bugaboo Spire, Bugaboo Mountains, British Columbia, Canada

Campsite with tent among trees, Mono Lake County, California, USA

Woman looking at map while sitting on paddleboard, Lake Powell, Utah, USA

Woman paddleboarding in Lake Powell near Cathedral in the Desert, Glen Canyon, Utah, USA

Two women paddleboarding through Cathedral in the Desert, Glen Canyon, Lake Powell, Utah, USA

Woman paddleboarding in Lake Powell through Cathedral in the Desert, Glen Canyon, Utah, USA

Woman paddleboarding in Lake Powell through Cathedral in the Desert, Glen Canyon, Utah, USA

Paddleboarding on Lake Powell, Utah, USA

Women trail running through Grand Staircase-Escalante National Monument, Utah, USA

Woman standing in desert scenery of Grand Staircase-Escalante National Monument, Utah, USA

Woman standing in desert scenery of Grand Staircase-Escalante National Monument, Utah, USA

Woman checking map at Grand Staircase-Escalante National Monument, Utah, USA

Woman crouching in desert scenery of Grand Staircase-Escalante National Monument, Utah, USA

Women trail running through Grand Staircase-Escalante National Monument, Utah, USA

Woman trail running through Grand Staircase-Escalante National Monument, Utah, USA

Two women canyoneering through narrow Zebra Canyon, Grand Staircase-Escalante National Monument, Utah, USA

Two women canyoneering through narrow Zebra Canyon, Grand Staircase-Escalante National Monument, Utah, USA

Two women canyoneering through narrow Zebra Canyon, Grand Staircase-Escalante National Monument, Utah, USA

Two women canyoneering through narrow Zebra Canyon, Grand Staircase-Escalante National Monument, Utah, USA