2021 Family Free Days Sponsored by North Shore Bank & WITI FOX6 January 2 -Advance reservations are not required. February 6 -Advance reservations are not required. March 6 -Advance reservations are not required. October 2 November 6 December 4 ALL VISITORS RECEIVE FREE ZOO ADMISSION, BUT THE PARKING FEE REMAINS IN EFFECT. As of May 1, 2021, the Zoo will be open daily 9:30 a.m. to 4 p.m. Entrance gates will close at 3:15 p.m. 2021 Zoo Special summer exhibit:…