Begin at 87F5
For this cache, you might have to learn a new convention.
Please be very wary of muggles in the area.
Can you figure out the convention I used to hide this geocache?
Seven days a week.
+ you might be able to exercise your geopup (if you have one).
Four what's it's worth, this mapping convention is rather new, but any Google mapping systems
Will be your friend. Happy Caching.
If you want to use Certitude, enter your complete answer to this puzzle.

You can validate your puzzle solution with certitude.
Erzrzore lbhe ybpngvba, naq orjner bs fcvqref.