On Jiu Jitsu – Possibly the single greatest physical activity and martial art one can take up, Brazilian Jiu Jitsu serves as an exceptional avenue for physical fitness, self defense, respect, discipline, healthy living, confidence and camaraderie. Stew and Tim are some of the greatest coaches I have ever had the privilege of learning from regardless of sport or martial art. An absolute encyclopedia of knowledge in jiu-jitsu and the martial arts.