Usually water must be sealed, good that fits in a clear 1 gallon bag. Lawn chair if sitting in the lawn, camera, blankets a full list is on their website
Won't usually need chairs, as the "lawn seats" here are actually seats, just on the outside perimeter. Food and bags, but they must be clear
You are allowed to bring food in a clear zip lock bag, water in a sealed container and a lawn chair as well.
Lawn chair and sealed water bottle or empty water bottle are okay
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