The above co-ords will take you to one of the classic locations to photograph Oxford's Dreaming Spires from, but the cache isn't there and there's no need to visit this location in South Park. The cache is within two miles of it though.
It is hidden with the Outstanding in the Field! Geolympix Puzzle Token (aka AANDs - Aluminium Alpha-Numeric Discs) at N51°4G.FCH W001°1G.DFH. It's a busy location so please cache with stealth, and perhaps pick an especially quiet time. The cache is well hidden and is unlikely to be muggled without a cacher giving the spot away - please don't stick your hand where you can't see it without going slowly and carefully. Good luck and try not to get caught! And remember to smile: :)