SchAHAtzsuche: Trügerischer Schein!
Part of the GeoTour "Ge(o)heimnisse der Region Hannover"

You can do this cache at any time!

What should you do?
Try to locate the cache first. The sticker might help. Next, you have to open it. The code equals the number of aha recycling centres cubed. (if you don't know the answer, just try the options. Given that we are looking for a four digit number, there is not that many options) You may not see the logbook right away. Just look a little closer.
Many thanks to Fräulein Feinbein for helping with the implementation!
Have fun


Viel Spaß
Euer aha - Team