In reply to Barry Chocolate:
No probs you pays your money and takes your choice
There's Langsrath, Seathwaite, Carrock Fell, Honister, or even Thirlmere if the water level's low enough.
There's hardly any shortage of decent boulders in the area, if you're prepared to look and you dont have to be a human fly to climb some of them.
Head End Quarry is pleasant for an hour or so, and has a nice grassy landing and places for kiddlywinkles to play in relative safety.
If it's wet, and Keswick walls too crowded, try Penrith or Cockermouth -- both are smaller but relativey cheap!