You decide. Does GF stand for girlfriend or gluten free or grid filler?
The cache is not at the posted coordinates.
To find the final coordinates, fill in the missing digits:
N48 24.ABC W123 34.DEF
Use the following information to calculate the missing digits:
Stage 1:
B = number of letters in top line
D = F = letters in red divided by four
E = number of letters in second line
Stage 2:
A = second digit
C = first digit
Checksum 17 + 17