Hey there Sara,
Welcome to planDisney and thanks so much for your question! I'm happy to hear you'll have some time to sneak away for a Disneyland Resort adventure.
This question largely depends on how large your luggage is. The
Park Rules page for the Disneyland Resort says that "suitcases, bags, coolers or backpacks, with or without wheels, larger than 24" long x 15" wide x 18" high" are not allowed into the Disneyland Resort.
If your luggage fits within that criteria, you'll also want to make sure you don't have anything packed in your luggage that is not allowed into the Disneyland Resort. The
Permitted Items List is a great overview to make sure you're good to go. Just note that if you have anything with you that is on that list then you are subject to not be allowed entry to the Disneyland Resort.
In order to access the locker area, you'll need to pass through the security screening area, which is where they'll check all of your luggage to make sure you're not bringing in any prohibited items.
As mentioned above, there are
Locker Rentals available in a few locations around the resort with sizes varying from small to jumbo size. With your luggage, you'll want to stick with the largest-size lockers, which can be found in The Esplanade between Disneyland Park and Disney California Adventure Park. The entrance to this locker area is to the left of the
Disneyland Park main entry gates.
The size of the large lockers is 15" wide x 16.6" high x 22.6" deep. For extra large lockers, they are 15" wide x 23" high x 22.6" deep. Lastly, jumbo lockers are 18" wide x 25" high x 37" deep. You can expect to pay $12-15 per day depending on the locker size that you need (note prices are subject to change).
When you purchase a locker, you'll receive a code so that you can access your locker at any point throughout the day. Please also keep in mind that items in lockers cannot be stored overnight.
As long as you can plan to bring luggage that fits within those sizing guidelines then you should be all set for your visit to the Happiest Place on Earth! Thanks again for your question, Sara.
Have a Magical Day,
Greg