Yes you can.
Most ferry lines will not allow you to bring your own food and drink on board. If they see you with it in any of the public areas, they will confiscate it.
Amtrak allows you to bring your own food and beverages onto the train. However, you are not allowed to drink your own alcoholic beverages in any public place, this is only allowed inside a sleeping car.
Astronauts bring powdered food and add water to it to create a liquid and it tastes like the regular food
take the ferry back from one of the other islands or vermillion city
As there would be a ferry crossing involved, and traffic is a factor too, it can vary. In total by road and ferry it could be done between 7 and 8 hours if timed properly. This would mean the truck arriving and going straight onto the ferry with little delay before the ferry leaves.
no
Yes. It is a crime to bring anything that can be readily used as an obvious weapon onto school grounds.
They have these bags that you can pour a fifth of alcohol into and bring it onto the ship
yes
Yes, the modifier in this sentence correctly located in "Spilling a drink onto the customers head the waitress was horrified."
If you mean no water as in usable water i would find a piece of the boat and get onto it. Then to hydrate your self urinate onto your shirt or sweater if you have one and wring it out over your mouth to drink and for food IF NEEDED take your shoes off take out the sole and chew on it.
You drink it or you empty it onto someone else