If she was just diagnosed in January you probably can still travel with her to Greece if that is setting she really dreamed to do that before. By my experience Alzheimer's patients get worst little by little, one day at a time per say, and there are so many things that they still appreciate while their "lives" are disappearing in front of our eyes. I have traveled outside the country with my husband several times after he was diagnosed and we have beautiful memories from those trips. Of course now he doesn't remember none of them but I do and I enjoy them and they're very dear to me. He was diagnosed over 5 years ago. Today it would be very difficult to do that and he wouldn't really be able to appreciate nothing.

If you think she will be too far out of her element for you to handle then how about getting some brochures and videos of Greece? you could sit down together and watch them. If she insists she is going to get better and go, that's okay, play along and tell her this will prepare them for what you want to see. It might be a diversion and let her think she will go one day.

Maybe try to take her on a 2 or 3 day trip first and see how she does during the trip and afterwards. Consult her dr and if all is ok, and you are up to it, go for it. Until then, thell her you are having to get everything arranged and it is taking longer because of new restrictions. What stage is she in?