In reply to Tri5:
Many years since I have climbed there but we used to climb and Fontvielle and Orgon (Canal) when other crags were closed due to fire risk, although I thought that there were access restrictions at Fontvielle, not necessarily due to fire risk. There are probably closer places to get the guide but there is a climbing shop in Cavaillon, where there is also a crag in the middle of the town.