Thank you Biker19 for the response.
You can see the response below and how it caused me confusion. This is all the information that I have received to date. It is focused on beverage.
. Yes, beverage pkgs can be purchased ahead of arrival online in the reservation and will receive a savings if pre-booked. The bev pkg will depend on what you prefer. If the adults book a alcohol pkg the children in teh room will receive a soda pkg. Soda pkg would be a good option. It will include a few other drinks like fruit, coffees. bottle water, etc. But most likely if you will drink several sodas a day, the bev pkg will be worth. But they are trying to cut down on sharing so it's hard to not get a pkg for each person. They run specials from week to week on the onboard items, so maybe watch a week or two and see if the specials get better from week to week.
Sorry for the follow up but does UDP stand for unlimited dining plan and the other one is a multi-day option?
Thank you.