Hi, Julia Margarita!
I'm glad to hear you're planning a visit to the Disneyland Resort this holiday season! Early December is a wonderful time to visit because crowds aren't too heavy (by mid-December, park attendance begins to pick up and crowds are the heaviest by Christmas week), but all of the seasonal extras are in full swing! December is actually one of my favorite months to visit and enjoy all the theme parks have to offer that time of year. The seasonal decorations, events, merchandise, attractions and food items make “The Happiest Place on Earth” even more delightful!
The entertainment schedule for the week of your visit hasn’t been released yet, so you may need to wait a bit before planning which theme park to visit on which day. I recommend purchasing park hopper tickets if you can so that you have the freedom of bouncing back and forth between the parks every day depending on crowd levels and scheduled shows and parades. As of now, early entry is offered to Guests of the Disneyland Resort Hotels on Tuesdays, Thursdays and Saturdays for Disneyland Park and on Sundays, Mondays, Wednesdays and Fridays for Disney California Adventure Park, so you may want to plan your mornings accordingly.
I hope this information is helpful, Julia Margarita, and that you have a wonderful visit to the Disneyland Resort. Please feel free to ask me any other questions you may have as you continue to plan your pixie-dusted vacation!
Wishing you magic,
Courtney