Guidance Mystery Cache
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Cache is not at the posted coordinates, but is within two
miles.
Guido found these GUIDs gouged on a girder. Can you guide
him?
f072807e-461c-4ddc-a4bd-c2e855c268a9
2092c8cd-d845-49a1-b3f1-be314efc0709
682302a2-425c-4793-a598-165b1ecda15a
6e61f90f-f3f0-411e-b59d-b64a7d67cfae
56ab7d98-f513-46ff-b8a7-59c631499eba
ff9971aa-6994-4560-b3a8-68dce6a175ec
979f16f0-b601-4695-9dda-15f0ff5946e3

You can validate your puzzle solution
with certitude.
Additional Hints
(Decrypt)
[GZ is very muggly during daylight; best visit around sunset, or with camo-kids.]
[Cache:] Zntargvp
[Puzzle:] uggc://ovg.yl/qPpmIn
[Puzzle (added 10-29-10):] Qba'g-oehgr-sbepr-zr-oeb!
[Puzzle (added 2-20-11):] BX, znlor lbh'yy arrq gb oehgr sbepr gjb bs gurfr. :c Fnir 1 naq 6 sbe ynfg!
Treasures
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