The guests have the option to do the AI or the European plan. When you do your contract, you need to give an estimate of how many rooms you think you will need. They will block these rooms and you must have 50% booked by a certain date (it will be in your contract) and then the remainder of the rooms need to be book 120 days prior to your wedding. If you do not use all of the rooms by the 120 days you can "release" the rooms so you will not be held financially resposible. If you do not release the rooms and they "all" are not booked, you are responsible for some perctage (I don't have my contract in front of me). When I did a site visit, I took pictures of everything. PM me your email address and I will send you a kodakgallery of it.