DWBride615 - your wedding/vacation sounds like it will be a lot of fun, your guests will be very appreciative of what you have planned for them. Having your wedding at a castle sounds so romantic. We don't really have anything planned for our guests in terms of excursions, we are going to get together for cocktails with the group either on the night of arrival or the 2nd evening. We are doing a rehearsal dinner the night before the wedding but that is just for wedding party and parents. We tossed around the idea of taking the group on an excursion but felt that seeing it is their vacation as well we didn't want to make them feel obligated to do something they didn't want to do.