Today on our walk home, we noticed a strange chalk line winding its way down 2nd street. Much to our surprise the line continued for most of our walk, seemingly mapping our way home. The line would switch colors every few blocks as its author swapped in a new place of chalk and would disappear for a dozen yards at a time but seemed to always reappear just when you thought the trail had run cold. Finn got excited and kept asking if there would be treasure at the end of the line. Eventually we lost the scent, but this concept can easily translate to a simple Saturday Morning Adventure. I was thinking that a chalk holder attached to the back of a bicycle ( like chalktrail ) would make the setup a more manageable exercise.