CHICAGO -- Preparations for the annual Chicago Air and Water Show are underway with practice flights drawing eyes to the skies over the city.
Free to the public, the official show takes place Saturday and Sunday on Lake Michigan from Fullerton to Oak Street. North Avenue Beach serves as the show's center from 10 a.m. to 3 p.m. daily.
A practice show is planned for Friday, also from 10 a.m. to 3 p.m.
Participants this year include the U.S. Air Force Thunderbirds, the U.S. Army Parachute Team Golden Knights and the U.S. Navy Parachute Team Leap Frogs.
Former Chicago Bear Charles Tillman will open the show on Saturday by tandem jumping with the Golden Knights.