These coordinates are not for the cache but for the parking. To find the cache you will need to solve the puzzle below. The difficulty rating is really just because of the puzzle.
N51 AB.CDE
W003 FG.HIJ
Due to the tree coverage near the cache, the coordinates may not be 100% accurate, the hint given should help you on your way once you near the coordinates. If you get really stuck, message BigPinkMuffin, but ensure you include the coordinates from the puzzle in the message. You will need to look at the hint to find the actual cache.
You can check your answers for this puzzle on Geochecker.com.
---------------------------------------------------------------------------------------------------------------
The cache was replaced on 9th June 2012 in a new hiding place due to it previously being muggled
---------------------------------------------------------------------------------------------------------------
* Cache placed with the kind permission of the Forestry Commission Wales *