It's a puzzle cache. There is nothing at the posted co-ords! To locate the cache please consider the following:
A:
B:
C:
D:
E:
F:
G:
The cache can be located at:
N50 5(A4-F1-D4).(C2+B6-E2)(G3-C3-B1)(A6-F3-D1)
E000 4(G5-E3-B2).(C5-D5-G6)(A1-C7-B5)(E1-F5-G1)
18/07/25 Important Update:
GZ has moved by about 50ft. Please adjust your calculated coordinates accordingly...
Minus 0.005 from the Northing.
Add 0.007 to the Easting.