Mark Postle is an experienced expedition climbing guide and coach with a passion for rock climbing, mountaineering, and ultra-endurance challenges. He has led over 50 expeditions worldwide, including ascents of Denali, Aconcagua, and Mount Everest. He is also a competitive ultra-runner with impressive finishes in races like the Leadville Trail 100. Mark's diverse background and expertise make him a valuable coach for athletes of all levels.