Chicago Air and Water Show in Chicago
Since 1959, the Chicago Air and Water Show has drawn free crowds to North Avenue Beach and the lakefront each mid-August, alternating headline performances by the U.S. Navy Blue Angels and U.S. Air Force Thunderbirds. Now the largest and oldest free air-and-water show in the country, it began on a budget of just $88 and has drawn crowds over a million strong.
Its scale and Lake Michigan setting make it one of Illinois's largest public events.