For kids definitely. I havent seen adults do it though. They have tables right outside though for you to eat beforehand
Yes you can
Yes.
I'm not sure of the official rule, but I ha e brought picnic foods into the zoo with zero problem for years. You can also bring drinks as long as they dont have straws.
No, but you can pack an ice chest and have a picnic at Brackenridge park right outside the gate. Get your hand stamped as you leave if you want to get back in.
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