Yesterday we went over to a neighbors house and learned about Lletterboxing–the ancestor of geocaching. Letterboxing started at the beginning of the twentieth century. One places a letterbox, consisting of a stamp, a stampbook, and a hiding place for another to find via a puzzle, riddle clue. Participants carry a stamp pad and thier own rubber stamp. (We carved our own on Saturday.) When you find a letterbox, you stamp the hidden log book with your stamp, and stamp your logbook with the hidden stamp.
This is so much less expensive, durable, and tailhardy than hiking around with electronic equipment–GPS and whatnot.
There’s a website where you can find letterboxing clues: http://www.atlasquest.com/