In reply to climberclimber321:
I've not actually been to this particular crag but I can think of three options:
(1) Park are High Wallabarrow farm (as for Wallabarrow crag) and walk along the west bank of the Duddon (might be a couple of quid in an honesty tub) there is a camping barn here as well.
(2) Park at Seathwaite and then follow the path to High Wallabarrow, cross the foot bridge, turn right and walk along the Duddon. This is where the pub is.
(3) North of the crag there is a bridge and there is a parking area for a couple of few cars at the bridge. Cross the bridge and turn left and walk down.
The last one is probably the shortest walk but none of them is very far and the walks are all beautiful.