With a lineage that traces back more than 30 years to its founders' respective schools, Tiger Rock Martial Arts has grown to more than 200 locations nationwide. Tiger Rock's primary focus is tae kwon do, through which certified trainers teach youngsters the skills to defend themselves, as well as confidence and discipline. Adults can learn tae kwon do as well or encounter martial-arts moves in a calorie-torching aerobic workout. Tiger Rock also partners with sports teams to bolster their training or with corporations to get their employees up, moving, and healthy.