They sell bottled water yes I always bring a small bag with incase they have ran out a few times when I've been there.
yes
Water fountains outside of the bathroom is all
I did not see any at the gift shop , when it's open. The concession stand and gift shop are never open ,within the two years I been going to the park I've only seen them open twice. So bring your own.
There wasn't any on the day we visited. I'm not sure if the first shop has any, as it was closed all day when we visited, so if bring bottled water with you. Luckily we had some in the car.
Thanks! Your answer is awaiting moderation.