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Geocaching is the free high-tech treasure hunt where you use your GPS receiver to find caches hidden by other players. It's a great way to be outdoors, enjoy the environment and the revel in the thrill of the hunt!

Grafedia is hyperlinked text, written by hand onto physical surfaces and linking to rich media content - images, video, sound files, and so forth. It can be written anywhere - on walls, in the streets, or on sidewalks. Grafedia can also be written in letters or postcards, on the body as tattoos, or anywhere you feel like putting it. Viewers "click" on these grafedia hyperlinks with their cell phones by sending a message addressed to the word + "@grafedia.net" to get the content behind the link.