At Campsite Du Pont de Braye in Chastanier (Lozère) camping costs as little as €14,- per night during low season with CampingCard ACSI. At one of the 26 touring pitches you will get a discounted rate during the period . At this campsite you can not only use your CampingCard ACSI for inexpensive camping, you can also use your ACSI Club ID (as an alternative ID).
It's great to camp on the banks of the Chapeauroux, a little river in the Margueride which can be tumultuous at times. Very quiet roads lead to this secluded, but easily accessible spot. You will be welcomed by a very enthusiastic and helpful owner.