This cache is not at the posted coordinates.
To find out where it is, just add them up.
N 38° 00.EHM W 122° 28.CTR
This puzzle is part of a series. Make sure to collect the code to find the final puzzle, Final Number.

You can validate your puzzle solution with certitude.
Congratulations to ecrane for both FTS and FTF!
Znlor vg fubhyq or PNPURFrf?
Gurer'f n anzr sbe guvf glcr bs chmmyr.