https://opensourcebridge.scien....ce/wiki/Letterboxing
Does the condition of the economy have you ever hunting for a free activities to take pleasure from being a family? If so, you should give letterboxing a try. Letterboxing combines treasure hunting, puzzle solving, and a amount of art into an fun-filled activity that could be enjoyed by people of all ages. What is Letterboxing? At the most basic level, a letterbox is often a container holding a logbook and a rubber stamp. The container is hidden, usually inside a wooded location, and clues ar