Professional adventure rock climber Alex Honnold is one of the world’s most well-known climbers famous for his free solo ascents of big walls. His solo ascent of El Capitan in Yosemite National Park is regarded by many as one of the greatest athletic achievements in history. Honnold starred in Free Solo in 2018, a biographical documentary which won an Academy Award and a BAFTA, and is the author of critically-acclaimed memoir Alone on the Wall (w...