The sport known as Geocashing combines high tech gadgetry with the ancient lure of treasure hunting. Geocachers use hand held global positioning satellites, or GPS units, to search for token objects ---toys and other small trinkets --- hidden by other geocachers. In this week's edition of our series, The Enthusiasts, Minnesota Public Radio's Mary Losure goes geocaching with Pam Combs, a board member of the fast growing Minnesota Geocaching Association, and Pam's husband, Dave Combs.