Healthcare Workers Days To show our appreciation for all you have done for our community, the Cincinnati Zoo is offering healthcare and public health workers FREE admission starting on World Health Day, April 7, through April 9. Friends and family visiting with healthcare personnel may purchase up to 6 additional tickets at half price. We’re encouraging all healthcare workers to wear blue to the Zoo! This offer is extended to the front-line healthcare workers (doctors, nurses, care aides, and paramedics to name a few) who have been working so hard to keep our community healthy and safe. Badges and identification cards are accepted only if accompanied by a photo ID. Tickets Friends and family visiting with healthcare personnel may purchase up to 6 additional tickets at half price. Professional credentials, along with a valid government-issued photo ID must be presented at the Cincinnati Zoo to take advantage of this offer. Half-price guest tickets can be purchased below.