NOTE: Not well described in recent guidebooks. They say that it lies in the Heaven Walls cutting but actually, rather than being in the cutting itself, it is to your L on the uphill side of the fairly broad level as you approach the cutting from the ruined building above the Yellow Wall incline . Also, it is on a barrel-shaped slab rather than a rib. Finally three bolts are mentioned but the 1990 (Nick Harms) guide noted that 2 had been stolen. At present only one bolt is visible from below.
The Mere Giggle (E1 5b) - Up and right from the 2nd bolt
The Sniggering Smear (E1 5c) - Left from the second bolt
The Biggest Joke (E1 6a) - Straight up!
M Raine, S Howe 15/Oct/1986