In reply to Adderbury Climber:
Topo not really required - the easy problems 1-4 are on the first small boulder you come to, which has some bolts on top of it used by an outdoor centre. The next bit of climbable rock is a rather rectangular block which you can climb on three faces, the best being the front face which faces the reservoir, everything going at HVS, or alternatively take a bouldering pad to highball them. It all gets a bit less interesting then, broken and heathery until you go around the corner into the quarried section.
