In reply to JohnnyW:
Part of the Cathar trail in the Ariege, starting from Foix. Lovely scenery, no scrambling (that I can remember) and scenic castles and villages along the way, including Roquefixade, Montsegur and with Montaillou not far off.
Fly to Toulouse, train to Foix. Three days on the Cathar trail from Foix to Comus, then one day over to Ax les Thermes via Montaillou. Then either do two or three more lovely days on the GR10/Carlit Way from Meren-les-Vals to Enveitg , then train back to Toulouse, or relax with your feet in the thermal baths at Ax. Or similar.