I have a question since I just thought of it. What happens if there is a dessert party schedule and it rains/. mine is booked for immeditily following our reception in france lower.
They will put the dessert party in a back-up location (it might be the same place where your reception is), and then they will give everyone either ponchos or umbrellas to go outside to see Illuminations if they want to. If Illuminations is cancelled, I believe you still have the party but I am not sure if they will reimburse you for the viewing fee.
Just to give you a general idea of the locations, for my DP at the lower French Island, I was told that I might end up at the AA Parlor or the Living Seas (also my reception site) if we get rained out.