We are going to be going two years in a row (2017 and 2018) and are considering getting at least one annual pass so we can get discounts. Does anyone know if Annual Passholder discounts are easy to book? Are they like all the other deals where they are for only certain dates, have a bunch of restrictions, and you have to be lucky to manage to book it? Or is it pretty easy as long as you aren't trying to book last minute?