You could set up a access point in a car and have a good old Fox and Hound hunt. You meet at a location, the fox runs and hides and then the hounds have to find them....
We used to have these once and a while in the HAM clubs with the Amatuer Radio Bunch...
Don't forget to bring a directional antenna for searching, all thought signal strength with a omni works also.....
Conan
