Chengdu pandas with kids: what part of the day needs the most margin?

Family Travel

A traveler asks where to leave margin when visiting Chengdu pandas with kids, including food, bathrooms, naps, and leaving the park.

I know the pandas are the main thing, but with kids the hard part is often food, bathroom breaks, and leaving without everyone melting down. Where would you keep the schedule loose?

https://chinawondersguide.com/en/cwg_qa_help/post/a2462266