Rock climber Alex Honnold inside a moline – or shaft – in Greenland

National Geographic/Mickey Shafer

Arctic Ascent with Alex Honnold
National Geographic

ALEX HONNOLD is probably not a celebrity. The world-class rock climber first broke into the mainstream with an Oscar-winning 2018 documentary. Free solowhich chronicled his successful attempt to free solo climb (alone, unaided) the El Capitan summit in California’s Yosemite National Park.

Since then, he has become an unofficial pop culture ambassador for rock climbing, appearing in other documentaries and working on a nature special with National Geographic. Honnold…