What can we bring inside the park?

You have to go through security where they check your bags and you walk through metal detector. I carried alot with me and was never told I couldn't have anything. I would suggest carrying a back pack with essentials, snacks, waters, passes, etc. Makes security checks faster, rather than emptying pockets

Sandwich, water in plastic bottle, soda, biscuit, chocolate and other related things.

Snacks, sandwiches and such... Bottled water, plastic bottles