Boulder Aikikai, founded in 1980 in Boulder, Colorado, is a dojo dedicated to the study of the Japanese martial art, Aikido. Established by Hiroshi Ikeda, the dojo is affiliated with the Aikido World Headquarters in Tokyo, Japan, through the Aikido Shimbokukai organization. Beyond combat, Aikido encourages self-cultivation and improvement, with the goal of overcoming one's negative characteristics. The dojo welcomes all students who can safely participate, and all classes are open for free observation.