I've been doing it since I was 5. Tumbling is basically gymnastics but without all the dances and balances, it's only the flips and handsprings and stuff like that xx. It takes a lot of effort Young teen girl sport a lot of brainpower, but you get to make some of the best friends you'll have it your life. It was great but I almost got a head injury but a hockey player saved my life. Constant communication is the key.