In this comprehensive guide on how to stay safe while rock climbing, Michael Levy outlines the necessary communication essentials while weaving an exhilarating narrative of his alpine adventures through Peru.

This summer, Avi Ruben was climbing a steep couloir when he slipped, started sliding—and realized he had no idea how to self-arrest. Just as panic set in, he heard his radio come to life: It was his partner, giving him step-by-step instructions.

On July 2, 2020, Zach Eiten survived a sudden torrent of rockfall while climbing Montana's Granite Peak. He was left stranded with a broken foot, over ten miles from the trailhead and with storms on their way.