The published co-ordinates are not for the location of the cache, but may be a good place to start. Instead, the cache can be found at the following coordinates …
N 51 22.004800S W 000 41.0014400D
Please don't leave any additional clues (subtle or otherwise) in your log.
And please could you bring something to write with, as there is no pen/pencil in the cache.
You can check your answers for this puzzle on Geochecker.com.