Is it true you can add on to your ticket right up until you check in? So presumably at the counter before you turn in your voucher for your tickets? I'm agonizing over whether or not to get the water parks option for september. Its our first time there, we're there for 1 week and I'm not sure if we'll have time to do them. Both of us love Disney. We don't have kids so I think we move through faster, but still....