Ravrobin's Empty Circle Mystery Cache
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Cache is NOT at the posted coords. To reveal the proper coords, you must answer the following question. What can be put into a barrel that will make the barrel lighter? Type your answer into Certitude and if your answer is correct, you will be provided with the proper coords for this cache. Check your answer with the link below.

You can validate your puzzle solution with certitude.
Additional Hints
(Decrypt)
Vfa'g vg tengr gung Eni Ebova pyrnerq bhg ure 5 zvyr pvepyr?
Treasures
You'll collect a digital Treasure from one of these collections when you find and log this geocache:

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