Welcome to planDisney, Don!
I am thrilled to hear that you are planning on visiting
The Happiest Place on Earth next month. With all of the fabulous fall decor, it is sure to be an extra festive time to visit, with some great seasonal photo opportunities, like the one in front of the giant
Mickey Jack-O-Lantern!Don, since you booked through Costco Travel, you will need to contact them for the details of the cancellation policy, as it may differ from the cancellation policy of Disneyland Resort.
I do hope that you will be able to travel next month, but if not, we will see you real soon!
Sarah B.