The coordinates given are not for the cache itself, of course, but for a point in the large car park nearby - as good a starting point as any, I might suggest.
If you asked me to describe my three best friends I would have to say:
Eva desires sailor movies.
Trixie delivers salad boxes.
Lolita eradicates sexist skiing.
From this you will quickly deduce 12 different numbers, each less than 100.
Let's call them A,B,C,D - E,F,G,H - I,J,K,L
Please note I've taken some liberties with the classical rules regarding these numbers ;-{
The cache has coordinates:
N (50+B) (J - 3)/4 . (I - C) F D
W 0 G . (H/A) (D - L) (K - L)
.... and you're looking for a small tube in a larger tube..