A bonus cache to add to the Ad-lab series around Linacre reservoirs, a short diversion will be needed as space for caches around here is limited. See waypoint for 'on street' parking which may be a help & save you some leg work.
The cache can be found at N53 14.ABC W001 29.XYZ. The numbers for ABC & XYZ can be found by completing the Ad-lab caches and reading the journal entries.
Ebhaq gur onpx.