Hi there, Jaymie!
Welcome to the Disney Parks Moms Panel, and thanks for your great question. I'm glad you are already thinking about
staying hydrated at the Disneyland Resort. With all there is to see and do, I sometimes forget to drink enough water, but it is super important for having a comfortable day in the California sun.
You are more than welcome to bring a refillable water bottle into the Disneyland Resort. Just check the
Park Rules before you arrive for all other prohibited items. I like filling up my water bottle with complimentary ice cups available at Quick Service restaurant locations within both parks. There are also some brand new water bottle filling stations that have recently popped up in
Star Wars: Galaxy's Edge which I highly recommend. The
Disneyland app can conveniently tell you the locations of all water fountains in the parks right at your fingertips.
If you don't wish to carry your water bottle around all day, you may want to utilize the great
locker rental locations in either park. For one low daily price, you can use your locker all day as much as you'd like. I always get a locker for extra layers of clothing, sunscreen, and purchases I make throughout the day.
I hope this helps, and please return if you have any other questions about planning your vacation. Have a Fantasmic day!
-Jennifer