A climber tackles a difficult boulder problem on the glacial moraine at Tangnag, near Mera Peak and Mount Everest, Khumbu Region, Nepal, Himalayas, Asia

Rock climber in action, Stanage Edge, Peak District, Derbyshire, England, United Kingdom, Europe

Senja Palonen bouldering under Gibbs Cave in the Apron Boulders below the Grand Wall. Squamish, British Columbia.

Male rock climber tries difficult boulder problem in Red Rock National Park, outside Las Vegas, Nevada

A young man climbs a boulder problem during a sunset overlooking the ocean in Santa Barbara, CA.

Strong female looking towards next move on a boulder problem

A young man rock climbs a boulder problem in Santa Barbara, CA.