It doesn't have to be fancy or exotic. Maybe she just want two weeks without any work?
My T is never reachable outside of workhours. I know where my T went on hoilday in the summer. Lots of people go there. You can stay in an all-inclusive resort or in apartments. It can be affordable or really expensive. I know most T's in my country don't make a lot of money. Pdoc's do get paid very good. Maybe almost twice as much as T's.

My Christmas also won't be anything special. My family isn't so much about being together, having dinner together.
I'm surprised my T doesn't take two weeks of. She's free on the holiday days, but the other days she works. She really didn't had much vacation this year.
I do get jealous on my T and her life. I don't know much about it and it's probably not perfect. But I can see that my T is a happy person and her life is so much better than mine.