603 Karate & Self Defense offers quality martial arts and self defense classes for kids (ages 6+), teens, and adults serving Northfield, Tilton, Franklin, Belmont, Concord, and beyond. We offer Teen/Adult Karate classes, Kids Karate classes, Private Lessons, Women's Self Defense classes, and Corporate Seminars. Helping people discover and grow in the martial arts is my passion. Let me know how I can help you! -John Guarnieri