First timers to both Hawaii and Aulani. I've booked flight and accommodations for next July, but we won't tell our kids until Christmas Day. Can I wait until January to plan things at Aulani and on Oahu or do things book that quickly? The kids will be 12 and 9 so I want them to have a say in the details. Anything a must book now? We will be in Waikiki for 3 nights, followed by the POA cruise, followed by 4 nights at Aulani. Thanks!