Disney does special Illuminations receptions on water-level patios on either side of the International Gateway bridge. These are usually private, catered events, so my guess is that doing this thru Grand Gatherings is probably the only way it is available. It is a very pretty location and you really have "front row" seating for Illum. We have done several Illum cruises and while the view is terrific from the pontoon boats, it would be 100 times better from the patio locations. Price is a little steep, I guess I'd wonder what they were serving, but if I could afford it, I'd do it.