Two-stage multi, utilizing a magnetic power in the forest.
On the first stage you'll find something, which will give you the coordinates for the final.
Do not pull, just roll the ball. It's a ball, it is supposed to roll, right?
On the final stage (approach it from the forest - there's a nice path, if you approach the final from the bikepath, then you'll need to do some serious bushwhacking), you'll need to use the power of the magnetism! All you need to retrieve the logbook is in the black box hanging near the logbook container. After you use the power of magnetism, please return the tool back in the black box.
Please, close the lid of the logbook container tightly and put it back in its place as well.
This cache has been created by three cachers working collaboratively: Arkons (the final container), HailstormB1 (1st stage + tool of a trade) and tsalarioth
Bring your own pen!
Good luck!