My wife and I discovered Geocaching a little over a decade ago while on a double date with a friend from work and his wife. We went to a local park and with our GPS-enabled cell phones in hand, raced around looking for buried treasures. We found a half dozen hidden treasure boxes our first afternoon. The fun is in the searching. Geocaches are often hidden in ingenious locations, sometimes disguised and sitting in plain sight. In the years since, we have gone searching for geocaches on dates, while traveling, during family outings, and sometimes just because. It's often referred to as the "Worl...