Greetings, AC. Thanks for stopping by planDisney with your question!
If your child is under 3 years of age, they are welcome to visit Disneyland as a Guest of Mickey and do not require a
theme park ticket to enter the parks. However, all Guests aged 3 and older require a valid admission ticket and theme park reservation to visit the parks. I hope this clears things up!
AC, I have a tip for you: if anyone in your party purchases a
Lightning Lane Pass, your little one can also ride (as long as they meet the height requirements) even without a theme park ticket. Just let the Cast Member know their age if asked, and they are good to go!
The resort map in the
Disneyland Mobile App has an awesome filter feature that allows Guests to find attractions that meet their party's needs. You can filter by age, height, and thrill factor! It's a great tool to maximize your time at the resort! Be sure to also check out the play areas at the resort - my kids love Redwood Creek Challenge Trail and Goofy's How-to-Play Yard!
I hope this helps, AC. Feel free to visit again anytime if you have any more questions!
See you in the parks,
Melissa