Practical Karate and Self Defense for Children & Adults. Okinawan Karate Black Belt Academy, Inc. Please call and set up a time for your personalized self-defense program. We are the self-defense industry leader in Kitsap County. The following is a brief description of what we offer. Matsumura seito shorin-ryu karate, practical self-defense for children and adults. eskrima, brazilian jui-jitsu, self defense, little kickers (3-5 year olds), home of the Black Belt Academy (leadership development program). Achieving strength through harmony of the mind body and spirit! We also teach leadership and instructor skills. Since 1994, dedicated to providing high quality martial arts training. OKBBA offers Conference room space for 5-20 people as well. Please call for availability and pricing.