"Jumbo shrimp" is an oxymoron, like "astronomically small" or "tiny
mountain." It happens to also be a synonym for a more accurate
description of this cache, which is also an oxymoron. You must
determine that alternate description. Once you have, let A be the
number of letters in the first word and B be the number of letters
in the second word. The cache coordinates are an offset from the
listed lat/long as follows:
Latitude Offset = +0.0AB
Longitude Offset = -0.0AB
The cache itself is a 35 mm film canister, so be sure to bring
your own pen. It is located near a major grocery store. You can see
the synonym for the first word from the listed coordinates of the
cache.
Abg jurer lbh'q svefg fhfcrpg.