Birthday Parties Birthdays here at the Cincinnati Zoo are truly special and unique! We provide an experience and atmosphere you can only get at the zoo! Birthday parties are available on select Saturdays & Sundays from 11am-1pm or 2pm-4pm. You can check availability here and reserve your date! Reserve your date If your date is not available, please see below for our Zoo-It-Yourself packages available any day! For additional questions, please reach out to: [email protected]