There are a couple but probably the best and one nearest to Truro is Johns Wall near Porkellis, it is an old converted barn £1.50 a session. Little bit tricky to find without a bit of knowledge. Basically from Truro drive to Falmouth, take the Helston road, drive through Longdowns, take the third right signposted for Porkellis. Drive into Porkellis turn right at the Star Inn, at the bottom of the hill turn right (just before a bridge). Follow the road along the bottom of the valley go over a bridge and the wall is on your right, if you start going up a steep hill you have gone too far.
There is also a wall in Newquay and good wall near Bude
In reply to oakapple:
this place is excellent- i went there on holiday 2 years ago, and visited this barn- its awsome and i wish i lived near Bude cos simon is a great guy with a great place- have you seen the silo outside - lead walls etc just amazing ! sp if anyone lives down that way-get yer sen off down this climbing emporium -you,ll luv it !
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