Hey there Emanuel,
Welcome to planDisney! I'm so glad you stopped by with your question.
According to the Theme Park Reservation Availability Calendar, October looks to be a pretty busy month at the Disneyland Resort! Both the
multi-day tickets calendar and the
1-park ticket calendar are showing October 13 has no
theme park reservations available as of the time that I'm answering your question.
Unfortunately, upgrading to the
Park Hopper option would not open up any additional reservations in this case. However, on the dates surrounding October 13, there are reservations available for Disneyland Park!
If the dates of your visit are flexible, this means you could make a theme park reservation for one of the surrounding dates for Disneyland Park and then park hop over to Disney California Adventure Park starting at 11:00 AM (based on availability) if you do end up purchasing the Park Hopper option for your
theme park tickets.
With the
Halloween season in full swing at the Disneyland Resort, you're going to have such a fun time during your visit! If you haven't seen it already, the
Disney Parks Blog has a helpful
Foodie Guide that documents all the fun seasonal food and beverage offerings you can find around the parks. I used it during a recent visit and especially loved the Oogie Boogie Churro at the Churro stand at
Hollywood Land.
Thanks again for your question, Emanuel! I hope you have such a fun visit to the Happiest Place on Earth.
Have a Magical Day,
Greg