Behind the Scenes tours make for unique gifts for all occasions! Philadelphia Zoo offers seven thrilling adventures featuring our Giraffes, Hippos, Rhino, Penguins, Big Cats, Otters, and Tortoises. Please note: Behind the Scenes (BTS) tours are designed for guests ages 5+ (with the exception of Otters, which is 8+). Guests under 5 years of age are not permitted on any Behind the Scenes tours. If a guest under the age of 5 years old is registered for or attempts to attend a tour, Philadelphia Zoo has the right to cancel the reservation. Once you purchase a Behind the Scenes Gift Certificate, a printable certificate will be emailed to you. Gift Certificates will be valid for one calendar year after their purchase date. *Guests will be joining a public tour *Max Group Size: 6 people *Length of Experience: 20 minutes Registration A Behind the Scenes reservation includes complimentary admission, but does not include parking, which must be purchased separately.