Boulder Ki Aikido Martial Arts a peace-focused martial arts dojo in Boulder, Colorado. We train the human spirit through the practice of Mind Body Aikido and Personal Ki Development. We offer: • Child-Parent Ki Aikido Classes (ages 4-6, and 6–9) for children and their parents. Parent participation highly encouraged, not required. • Children’s Ki Aikido Classes (ages 9–12) • Ki Aikido Classes for Teens (ages 13–18) • Ki Aikido Classes for Adults • Private Martial Arts Lessons Ki Aikido is a Japanese art of self-defense that helps you function better in your everyday world, builds confidence, raises your level of physical fitness, and provides an effective way to handle conflicts and other difficult situations.