DCJoe1

Have a friend arriving at Orly 3 tomorrow evening, on a flight from Morocco, so will need to clear passport control and customs on arrival. Needs to get to the bus area in front of Orly 4 to pick up the Orlybus. So the question is: is there a way to walk indoors from Orly 3 arrivals to Orly 4 arrivals? Or must one walk outside on the sidewalk, I assume on a convoluted route because of the construction?

With the recent opening of Orly 3 and reconfiguration of the airport, there doesn't seem to be a detailed map of the interior of the airport available online to answer this one. Thanks all.