Hi Jlee!
Welcome to planDisney! Thank you for finding us hEAR and asking this great Disneyland Resort vacation planning question!
You'll be happy to know that
yes, there are lockers available for a daily rental fee. While both Disneyland Park as well as Disney's California Adventure Park offer lockers in three sizes that are more meant for personal items (think backpacks and tote bags), the lockers available near the
Picnic Area of The Esplanade are large enough to store big items like coolers and car seats. The two largest sizes at this location are the Extra Large, which measures 15" wide by 23" high by 22.6" deep, and The Jumbo, which is 18" wide by 25" high and 37" deep. Be sure to measure your car seat in advance of your trip so you'll know it'll fit. (And if it doesn't fall within those dimensions, see if you're able to fiddle with some of the settings that could easily be reset, like lowering the headrest or detaching the back-booster from the seat part.)
I do want to warn you that lockers are first-come, first-serve with no way to pre-book in advance, so your best bet to secure a space would be to show up around park opening time, or even about half an hour before.
I'm so excited for your upcoming trip with your mini Mouseketeer, Jlee! Be sure to check out our
planDisney video library for tips on tackling the parks with a preschooler. Here's a helpful link about all things
stroller rentals. And stop by the
Baby Care Centers to find everything you'll need to have a successful day at The Happiest Place on Earth! We'll See You Real Soon, Jlee!
~Kristen