Cache is a preform container that has only a logbook. Please bring your own writing instrument to sign the logbook and replace as found. Parking can be found nearby to the East.
You will not be able to see the container until you bring it out of its hiding spot. I'll even tell you where to look ... see spoiler picture. You will need a tool to extract.
Congratulations to mmsm and Star-Runner on the FTF!