Yesterday, I was researching Thomas A Edison Lake and the Vermillion Valley for an upcoming camping trip I'm taking.  I was looking at this website for basic information about the area and to see what basic supplies the Vermillion Resort would provide in case of emergency.  I was looking at the activities available when I came across this.

Thomas A. Edison Lake via i55.tinypic.com

Geocaching (pronounced geo-cashing).  Apparently, it is like a scavenger hunt for people in the middle of nowhere and with GPS.  You are given a location, and you have to find your way there, only to find a treasure of some sort.  You grab the treasure, take a photo, sign a guest book, and either return the treasure to its original location or replace it with something of equal or greater value (like a shirt from here).  I'm mixed about the idea, as it would provide a goal when hiking, but also defeat some of the purpose of hiking (wandering around aimlessly and enjoying nature).  I'd probably prefer hiking to remote lakes/summits, but was curious to know if any DBDers have ever geocached before, and if they enjoyed it.