Yong In Martial Arts Academy, Brentwood

Eighth-degree black belt Master S.H. Koh began practicing taekwondo in 1967 in South Korea. He's still going strong at Yong In Martial Arts Academy, where he and his staff teach the classic Korean martial art to kids as young as 3. Their training programs also include other Korean martial arts such as hapkido and kumdo, as well as muscle-toning yoga and kickboxing.