Philadelphia Zoo (3400 West Girard Avenue) announces the return of Boo at the Zoo Presented by Chase. This top annual Halloween extravaganza will return to America's first Zoo for three enchanting weekends, on October 16 to 18, October 23 to 25, and October 30 to November 1, 2020, from 10:00am to 4:00pm each day. Get ready for some tricks and some treats - and tons of fall fun - during everyone's favorite October tradition. Kids of all ages are invited to come out with their families in their favorite costumes and set out on a not-so-spooky safari. Ticket times and reservations will go on sale on October 1st at PhiladelphiaZoo.org. Admission for Boo at the Zoo is free with the regular price of admission.