The website livingsocial is offering the deal for a membership to the Elmwood Park Zoo. You'll pay $42 for a membership that usually costs $85.
The membership to the Elmwood Park Zoo includes unlimited zoo admission for 2 adults and all of their children under 18.
There's also members-only events and discounts on many of the zoo's special programs and seasonal attractions. The zoo has more than 300 animals, including elk, flamingos, alpacas, big cats, and more, and even features a petting barn where kids can hang out with friendly sheep and goats.