The co-ordinates are not for the cache but it is not all that far.
The cache can be found at:
N ABB.CD
W BBBE.FG
Where A=10th-2nd-1st
B= the last digit of the 4th
C= 6th+3rd+2nd-1st
D= 7th- twice the 4th
E= twice the 6th +(3rd-1st)
F= 2nd-1st
G= 8th-(2nd+3rd)
This is our first puzzle cache and it was set by the youngest and cleverest half of Ash's Cachers. I hope we have the difficulty right - let us know if you disagree.