We headed down from the barren and wind swept heights of Le Cirque Gavarnie to the lush foothills of the French Pyrenees to spend a couple of days relaxing at Camping La Régate on the edge of Lac De Montbel, swimming in the lake and hanging out at the little campsite beach. From this base we went off on a day trip to the spectacular ruined Château de Montségur. A hilltop medieval Cathar castle once rumoured to hold the Holy Grail, but now a gorgeous mountaintop ruin.