To log a find, one must (!) add a page or two (no ten page sagas please) in the log book to develop the story line. You can be as creative as you like as long as you keep the story relevant to the plot and characters introduced already, and leave the story at a point where the next finder can continue on.
I will occasionally transcribe the story onto the cache page for everyone's amusement, so keep it clean, fun and friendly. Use common sense, and I won't have to delete your log and rewrite history. :p
The cache is a small plastic container with a log book and pen, and a few small swaps. The area is generally kid friendly, but there's a bit of terrain at GZ. No need to trample any vegetation at all, so don't even think about it.
Enjoy ...