Hi Keanu!
I'm so excited to hear that you're getting ready for your little Mouseketeer's first visit to the "Happiest Place on Earth!" We recently enjoyed our new little princess's first visit to meet Mickey, so I can tell you that you'll have a fantastic time enjoying the theme parks with your little one!
Per the
Disneyland Resort Rules, Guests are welcome to bring food and beverages into the theme parks, provided that they don't bring any glass containers (other than small containers, such as baby food jars) or alcohol. So you're welcome to bring your son's formula and water with you to the theme parks! Keep in mind that your bag or cooler that you bring with you can't be larger than 24" long x 15" wide x 18" high (61 cm x 38 cm x 46 cm) and you can't bring any loose ice in your cooler. So if you need to keep anything cool, I recommend that you use reusable ice packs.
Keanu, be sure to take advantage of the
Baby Care Centers during your trip. They are the perfect spots to take care of all of your little one's needs and they're quiet and peaceful places for your family to take a break from the busy theme parks during a magical day!
Feel free to come back to see us if you have any additional questions. T-T-F-N, ta ta for now!
~Crystal