Please note: Admission rates and exhibit opening and closing schedules are subject to change without notice. Although Zoo admission for children under two is free, tickets are required for all guests, including those under two, for the PZ Express, Amazon Rainforest Carousel and all animal rides. Tickets to these rides may be purchased at the Zoo. Visitor grants to the Philadelphia Zoo and its successors and assigns the absolute right and permission to use, publish and broadcast Visitor's picture or likeness (and the pictures and likeness' of Visitor's minor children), without additional approval, for purposes of advertising or trade in promoting and publicizing the Zoo.