The cache is not at the listed co-ordinates, however the location may provide a clue.
Logbook only - bring your own pen
Cache is at: N 52 54.ABC W 1 33.DEF
A = 1998 (1) – 1998 (2)
B = 1992 (2) – 1987 (1)
C = 2004 (1) – 2005 (2)
D = 1987 (2) – 1969 (1)
E = 2001 (2) – 1987 (2)
F = 1969 (1) + 1969 (2)
Please retrieve and replace cache carefully - main body of cache is a little delicate. Log is in a micro cache attached to the body.
Check your solution by clicking on the geocheck icon below:

[Puzzle]: Gur gvgyr vf n ubool, jr urne.
[Cache]: Vil pbirerq gerr - nebhaq urnq urvtug.