Yes, and their website lists what you can and cannot bring in, such as No fruits/veggies larger than a grapefruit and must be sliced, etc. It gets hot there, so being able to refill a plastic water bottle from their water fountain saves a lot of $$

I'd also heard that you can bring in one full water bottle if it has not been opened yet

You can also bring in a soft cooler. Must have plastic unopened bottles, but it will save you $!

We all brought one

Yes you can