Rocky Valley Overview
The cache, a camo-taped pre-form tube, is hidden at this spectacular viewpoint atop the Ilkley Crags overlooking Rocky Valley which lies about 800m (15-20 minutes walk) west of the Cow & Calf car park.
***Please take care at the location as there are huge drop-offs nearby***
***Note: there is no need to get close to the edge to find the cache***
To reach the cache location: park @ N 53 54.981 W 1 48.028, the Cow & Calf parking lot. If full, you should be able to find off-road parking further up the road, or you may find space in the car park of the nearby pub.
Walk up the flagged path and then either a) climb up the Cow & Calf rocks by any one of several routes or b) head around the eastern edge of the rocks to the plateau above.
Then if using a) take the trail starting around N 53 54.965 W 1 48.229 heading south-west or if using b) take the trail starting around N 53 54.916 W 1 48.143 heading west-south-west. After some 300m both of these join.
From this junction cross the beck and take the middle trail heading south-west up to the top of the escarpment & cache location.
The crags with their 6 buttresses and numerous large boulders on the slopes below are a popular rock climbing venue with some 157 climbs listed. The area is also geologically fascinating . . . 'during the last ice age, the ground and underlying rocks [in the area] would have been deeply frozen. The shales, in particular, were left in a softer weakened state when this permafrost melted. The escarpments [such as Ilkley Crags on the southern edge of Rocky Valley - where the cache is hidden] would then have been susceptible to landslipping as the grits slipped over the underlying waterlogged shales.
Rocky hummocky ground occurs in many places below the edges of the moor, as around White Wells, for 
example, marking the presence of these extensive landslips. The most spectacular example occurs at Rocky Valley where a whole section of the moor edge forming the south side of this valley [the area approximately 400m NW of the cache location] has moved down-slope and rotated anticlockwise, presumably on an underlying slip plane . . .'
This is part of the focus of Hillgorilla's Earth Cache GC7RQDG Rocky Valley down along the valley trail which is worth visiting to get a ground-level perspective of the impressive Ilkley Crags lining the south side of the valley.
The trail accessing the cache location continues east passing across Keighley Road and then past High Crag and on towards Long Ridge End and Nab End on the western edge of Rombald's Moor.
See here for a short video of an exciting MTB descent of the valley.