Cache one of three by oceanwaves22 & yellow.warbler, dedicated to Bouffe and the shenanigans of Team B.O.Y.
This one shouldn't be too hard to spot, but retrieving will be slightly more of a challenge. Placed in a residential setting in a surprisingly appropriate location.
Take note of the secret word written in black sharpie at the top of the logbook. You will need this to solve a puzzle.