Avis Swiss Side Drop Off French Side Pick Up
I will return a car to Avis on the Swiss side completing a trip in Switzerland, and hire another car at Avis on the French side (continue a trip to Paris).
The question is: what is the easiest way to go by foot from the Avis Swiss agency to the Avis French agency.
The easiest way is to walk. Once you drop off your car on the Swiss side, go to the arrivals area on the same (ground) level. Then go to the upper level check-in/departures, from there look for signs 'Destination France'. If I remember right the access to the French sector is near the British Airways check in desks, at the far end of the terminal.