France is a great country for hiking. There are many friendly car and truck drivers. The highways cost money, and at some péages (toll points) you can get a hike easily. At some Péages all the traffic has to stop and pay - these are excellent spots to get a long ride further. Most cities next to a highway have a péage where all trafic has to stop. You can get free maps in the péage offices - these also indicate where you can find the "all-stop-péage".