Bluetooth between Raspi and RAK4631?

Hi all,
i missed the developments of about one years so i don’t know exactly what’s possible today.

One question: Is it possible to make a bluetooth connection between a Raspberry Pi and a RAK4631 and then pass some messages to a node in the mesh from the Raspi to the RAK and receive messages on the Raspi from the RAK?

The background is that i want to pass some data in form of text strings between two Raspis which are a few km distant to each other and one of them does not have Internet access…

Thanks for any clarification and/or advice.