The cache is not at the published coordinates. To find the coordinates of the cache, answer the questions and plug the numbers into the equation...simple!
The questions are all Scouting related (we are both in Scouts) 
A = What year did Baden-Powell die? ???A
B = What year was Baden-Powell born? ??B?
C = Where was the first ever Scout camp held? Number of letters = ?C
D = What year was the centenary of Scouting? D???
N 52° AB.B(A+B)(A+D) W 000° B(B-A).A(C*D)(A+B+D)