Cache is a slim jim aka flat pack that has only a logbook. Please bring your own writing instrument to sign the logbook and replace as found. Parking can be found near GZ.
I've been finding these containers for years, starting out in the US ... in Michigan specifically. They referred to them as Slim Jims. Either way, you know what you're looking for. What do you call these?
Congratulations to boekmeisje on the FTF!