Letter Box

We have been doing "letter boxing" this summer with the kids...Letter boxing is like Geocaching for kids.  Someone hides a notebook and an ink stamp in a secret location and post clues for other to find. If found, you stamp your own notebook with the found stamp and leave your mark in the hidden notepad.  Be discrete and careful not to give out the secret location to onlookers.
I drew a few sketches after our last litter outing. ...will post these over the next few days.....