Rochester Hills CKD/Choi Kwang Do is located on the corner of Hamlin and Livernois. It is a martial arts school that promotes health, fitness and self-defense. Choi Kwang Do was developed by Grandmaster Choi between 1978 and 1987. It is a natural style that is easy to learn with sequential movements that maximize the body's force and enhances your health. Blending ancient martial arts with modern scientific principles, Rochester Hills CKD has created a unique form of exercise.