First time poster
I am a letterboxer who is looking to expand my horizons into the world of caches. I'm going to try some of the things suggested here (google earth, cachemagnet) before I invest the money for a handheld.
To bsa, Prime Suspect is right. You can achieve the same type of hiking/mystery adventure without coords by letterboxing. There are 273 in the state of Arizona on atlasquest.com. You can also check letterboxing.org