We'll be visiting DL the end of April and though I originally purchased 3-day PH tickets, we now will be visiting for 4 days. I know that I can add a day to the ticket at the park, but want to confirm the best way to do this. At WDW we were told to use tickets at least once before adding days in order to get a better price on the added day(s). Is this also true for DL, or do you have to pay the gate price for additional days no matter what? Also, our first day in the park is 4-29, which is also the last day for the adult-for-child priced tickets. My sister and her kids are going with us, but they've had a flight change and now may not make it in time to use their tickets that day (they've already purchased them). What would be the best way to handle this? Thanks for your help!