Start at the far back right of the Amphitheatre at a gully. Scramble up slabs to the left and traverse right into the gully above its first pitch. Climb a short awkward step to a recess. Don't follow the gully left; instead climb an 8m wall to the right (easier than it looks) then a small slab on the left (exposed and needs tricky footwork) to come out onto a large sloping slab. From here scramble up small rock steps to avoid the grass and scree of the steep hillside until you emerge on the path to the summit of Carnedd Llewelyn.