One Alabama man has proven that you don’t have to be young to hike the entire Appalachian Trail. M.J. “Sunny” Eberhart, also known as “Nimblewill Nomad,” entered the record books as the oldest person to complete the roughly 2,190-mile trail from Georgia to Maine. The 83-year-old retired eye doctor admitted that he faced some difficulties along the way but he was determined to complete the venture.