What is geocaching? Activity for couples and families

Many couples find that they don't spend enough time together (or as a family if you have children) and if you choose to spend whatever time you have at home, you might end up watching television or surfing the Net or fixing things around the house. That is why in order to keep your relationship strong, do something that "forces" you to be together. So to all the other activities for couples, you can add one more: geocaching. It is new for me and only recently I have tried it out with my wife, and if you want to find out what it is, watch this video.