If you're after local history you Can visit Comboire, which hosts a 60 degrees overhung 8a, possibly one of the first of the area... Entirely manufactured with the first series of entre-prises bolt on holds!!!
Other than that, i recall someone telling to me that the local hardmen tend to bolt a new "secret" crag, outclimb it in 2 seasons, and then move to the next...so the best place to bum a belay would ne their current secret crag!!!
I also recall the same person saying that St Ange is very worthwhile if you climb solidly in the 8's and a good warm weather crag (afternoon shade). Apparently one of the few really local crags where most routes are not about a single finger-breaking move on pollution-greased slopey crimpers (whivh probably means that You have to endure several of them!)