My FCOR (First Cousin Once Removed) is doing a through hike of the Appalachian Trail. He is currently 12 and will turn 13 on the hike.
He has a YouTube channel where he is trying to document the journey. He is a pretty cool kid but do remember he is new to this and his videos are a 12 year olds videos. Though he would get a kick out of a boost in his subscriber count.