I can't seem to bring a water bottle. There is a place to drink water in the national map ~ ~ a notebook will do. He will give you a special notebook bag, the one with a net bag, and you can bring a notebook. I don't think you can print the material. Never tried.
Wireless internet access requires a card, and it seems that it will only be the intranet of the national map after the card is issued. Guotu has a computer, which can be connected to the external network, but it needs to be paid.