Going to have to disagree. I’ve bailed from a few Yosemite big walls because a partner lacked the endurance to climb 16-20 hours straight. These were 5.13 sport

Going to have to disagree. I’ve bailed from a few Yosemite big walls because a partner lacked the endurance to climb 16-20 hours straight. These were 5.13 sport climbers that were too bonked to jumar the rope. Nope, you can’t run a climbing marathon unless you train for it.