You're looking for a peanut butter jar in some trees, along the Bruce County Rail Trail using billion dollar satellite technology with a hand-held GPS, to trade dollar store trinkets and gain a virtual smiley face! My origional GPS cost me $50!! I still use it along with the expensive one I paid for using Canadian Tire money! They're free to use from the Bruce County Public Library system, (and from the Grey-Bruce Health Unit I'm told).
Hey! A peanut butter jar! Bring your own pen however. Not far off the trail.