Geocaching is an outdoor recreational activity, in which the participants use a Global Positioning System (GPS) receiver or mobile device and other navigational techniques to hide and seek containers, called "geocaches" or "caches," anywhere in the world.
The boys sent me these pics right away:
They also decided to camp for the weekend, which meant they needed to rough it for meals:
Yep, reeeeaaaalllll rough :)
I will update with pics from Ryan tomorrow.