<p>How far could someone reasonably walk in 48 hours? I was just randomly thinking of walking 96 miles over two days for charity, leaving time for sleeping mid-way through (6 hours or so) and some meals, and figured it was reasonable at a 3mph pace. What do you think? I’m training for a marathon in May, and was thinking of doing this in the summer, so do you think I’ll be overcome with fatigue or will I triumph?</p>