Lac du Salagou is south of Lozere, north of Montpellier, so sort of bottom middle, to the right as you look at the map. A remote place with wine coloured soil (volcanic?) And a shortage of fresh drinking water. As Chantal was with me we stayed in a campsite (showers, toilets, water) and it made a lovely change. Chantal was thrilled by the hot showers, I was puzzled by the fact they were always cold...until she helpfully pointed out that I was using the cold one..note blue motif on door as opposed to red. Doh.
The site was very friendly, clean and spacious but they did come round at 10pm (on the dot) to tell us to pipe down. There are certain rules the French really like.