Cheers Chris.
It was a bit last minute, and I don't have the routes guide so thought we would be able to get by with the bouldering topo (it shows where most of the popular trad routes go).
As it happened, we got to the crag and my girlfriend miraculously pulled out a dog eared print out of the bouldering topo, which had apparently been stuffed down the back of her bag since the last time we were there. She had no idea of this either...!
Had a really good half day, before having to head back down south.