Darien Fest - Aug. 12th-15th, 2021 Darien Fest is a community event sponsored by the Darien Chamber of Commerce and Qbar. A fun-filled, family-friendly, (4) day event with great music, good food, BINGO, business expo and carnival. The event will be held at the Darien Plaza Shopping Center, 8109 S. Cass Avenue. - Darien, IL. Hours of Operation: Thursday (8/12) 5:00pm-10:00pm,Friday (8/13)1:00pm-10:00pm,  Saturday (8/14) 1:00pm-10:00pm, and Sunday (8/15) 1:00pm-8:00pm Parking for this event will be marked by signage along the participating businesses located on the East side of Cass Ave., to the north and south of the Fest grounds. NO PARKING allowed in the business lots along the west side of Cass Ave.