28-year-old Justin Guarino is a gym owner and parkour expert. Since he was a little boy, he's been a talented athlete-- practicing everything from running, swimming, biking, martial arts, to parkour, yoga, and climbing. (Instagram/je_guarino)
Jeremy Guarino-- a jack-of-all-trades when it comes to athletics-- will be competing on this season of Discovery Channel's American Tarzan. Click through our gallery to check out his best pics.