The Head of the Charles is an annual rowing event held on the Charles River in Boston, Massachusetts. Established in 1965, it is one of the largest and most prestigious regattas in the world, attracting thousands of athletes and spectators each year. The race features various categories, including singles, doubles, and eights, with participants ranging from elite athletes to amateur rowers. The regatta spans a 3.2-mile course, starting at the Boston University Bridge and finishing near the John W. Weeks Bridge. It showcases the skill and teamwork of rowers while promoting the sport of rowing. The event also includes a festival atmosphere, with vendors and activities for attendees.