Coordinates will get you close to the cache. You'll have to figure out where it's located after you arrive at the coordinates. Bring your own writing instrument. If you forget, there may be some lying about. Check it out, but don't check it out. Be sure to take a mark at "The End". I want the thank the Sleuth Society for giving me this idea.
Gur pnpur gvgyr vf lbhe uvag.