Several folks have mentioned geocaching with little folks - I think this is the coolest ever and have even had a co-worker ask me to help her set up a "pirates" geocache birthday party since I have access to a set of 10 units. This is for an 8 year old and her friends because they want to know how she "treasue hunts" each weekend with her family.
Kids catch on to this so much faster than adults.
Family Geocaching - A treasure that's found and will last a lifetime!!!!
Irishcat