This Friday, the Děčín Zoo will reward all active blood donors. June 14th marks World Blood Donor Day. They will be offered free admission to see the animals. All they need to do is present their blood donor card with at least one donation recorded in the past year. Free admission will also be valid for visiting the Paradise Islands Exhibition. However, the Děčín Zoo thinks about blood donors throughout the entire year. They offer them admission with a 50% discount year-round.