The published coordinates are not for the cache.
You are looking for a small black bison tube which can be found
at N 51° 2A.X W 000° BC.Y where:
A = Cockney in control from Amsterdam
B = Confusion for primate
C = Longing for north of the border
D = Not another one
E = May be sandy
F = Fire no more
G = Liked by most
H = Its not me, its ...
X = D x (D + E) x (D - F) - (E x E) - 13
Y = (((G + E) x D) + G) x (D + F) + (E + H) + 10
N.B. due to tree cover, the best reading that I took for the
resolved coordinates were +/- 17ft