Garmin’s virtual Appalachian Trail challenge requires participants to walk 2,175 miles—the same distance as the famous hiking route. One enthusiast is setting a goal to complete it by 2026, using daily step counts and a powerful fitness tracker as motivation to keep moving.

Betty Kellenberger braved freezing rain, hunger, and sore muscles on the Appalachian Trail. She had no idea that, at 80, her journey would mark a historic achievement.