I don't know about bottled water-don't drink it. They do have ice water with lemons, iced tea, juice and coffee for free all day. Also various hors d'oeuvres and little snacky things.
I really like iced tea, so that is a great convenience for me.
I'm pretty boring in my beverage consumption I guess. I rarely drink alcohol or soda. The cruise ship makes very little money off me!