Yeah! They dont bother you with snacks or water. It would be better if you can bring a kid though and say its his/her. Just in case.
They have food and no one check your bag that closely. You can bring some snacks but not with large container or cooler.
They have some cafés and food courts. It's Nice to eat there looking at the Park through the window. You can bring some snack anyway, and have it there.
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