It looks like Aunt Raffy is with Giada in Monaco, and Giada has been updating her Twitter with pictures of places she has been throughout the trip. And of course, there is another Giada bikini picture before the episode even airs:
|Image Souce - Giada's Twitter|
There is no air date for the special yet, but I will have an update when it is known.
UPDATE - This will air January 20th at 8pm on the Cooking Channel. Not on the Food Network.