Finale comment/question
Regarding all the speculation about where they were:
They had to show somewhere that would never be confused with anywhere near Miami, or anywhere else they frequented. The Celtic music could be just a reference to Fi and her heritage and how they were living. As was said in other posts, maybe it was Wales, northern England, or somewhere else, rustic, old world, and close to off the grid.
Anyway, I'd like to consider how they established new identities. Would there be a way, a person they could trust, and someone proficient enough to create new identities on the fly?