and the Holy Grail is buried on Oak Island in Canada.
See? That wasn't hard.
Possibly. I know there are several "replica's" there, and an annual procession. I am not sure the original is there, but I believe it exists somewhere for the right time.
I have read about the journey to Egypt and Elephant Island. This is interesting conjecture, but in the scheme of things it is not important. Regardless of our perspective, in Gods due time.