Hi there, Sophia!
Thanks so much for stopping by the Disney Parks Moms Panel with your great question. I'm delighted you plan on enhancing your time in the parks by reserving a
World of Color Dessert Party experience! These parties are such fun ways to make one of the most amazing nighttime spectaculars somehow even MORE special.
Tickets for these dessert parties work the same way as park tickets. Children under three years old will not need a ticket and will sit on your lap, just as children under three do not require a park ticket for entry. When you reserve your party you will not need to include your 15 month old in your ticket count, but you are more than welcome to bring her. I hope this helps!
While you are in
Disney California Adventure Park with your little one, make sure to stop by some of my favorite attractions for children this age that do not have a height requirement. My son always loved riding The Little Mermaid ~ Ariel's Undersea Adventure, Toy Store Midway Mania!, and now you can experience the all-new Inside Out Emotional Whirlwind. Plus, your daughter will love to meet some of her favorite Disney and Pixar Characters throughout this park.
I hope this helps, and please return if you have any other questions. Have a magical day!
-Jennifer