https://historydb.date/wiki/Ev....ery_Letterbox_Is_a_G
A mystery letterbox is an excellent activity that's done outside and is also fun for all ages. This makes it an incredible family fun activity. Not only does it allow you to be outside in the fresh air, it also exercises the mind by trying to solve a puzzle. If you aren't informed about letterboxing, it's really a hobby of sorts. It going on the moors of England now has spread for the U.S. as well as other elements of the planet. Basically, a letterbox is often a container you discover outside somewhere.