Hi there, Adrian, Guests of the Disneyland Resort are allowed to take outside food and non-alcoholic beverages with them. Refillable water bottles are also allowed, even metal bottles like the brand you have. One of my favorite refillable water bottles is an insulated metal bottle that I got at the Disneyland Resort.

Yes, you are absolutely permitted to bring a Hydroflask or any other brand of insulated metal water bottle into Disneyland Park and Disney California Adventure in 2026. The only major restriction regarding beverage containers is that glass is strictly prohibited for safety reasons. To make your entry smoother, keep your Hydroflask in an accessible part of your bag or hold it in your hand when passing through the Evolv Express security scanners; these modern "weapon detection" systems are calibrated to ignore standard items, but a large dense metal bottle can occasionally trigger a manual bag check. Once inside, you can refill your bottle at "Bottle Filling Stations" located near most major restrooms, or you can ask for a free cup of ice water at any Quick Service restaurant to keep your drink chilled throughout the day.