Darby Allin is taking his daredevil reputation to new heights -- the AEW star tells TMZ Sports he plans to climb Mount Everest, the world's highest peak, next year ... one of the most physically and mentally demanding feats known to man!
30-year-old Allin says he's on a mission to surpass what other wrestlers have done before him, not just inside the ring, but outside, too, "pushing the boundaries."
"That's been my whole MO since AEW started," Darby told Mojo Muhtadi, adding, "That's why it's so important for me to meet up with guys like [Travis] Pastrana, and make stuff happen.