Orienteering
Radio Orienteering is a sport that combines ham radio and outdoor navigation skills with orienteering events.
Also called Amateur Radio Direction Finding (ARDF), it allows you to be excercising outdoors while you "play radio".
The man on the left is running as he holds a direction-finding antenna. There are transmitters hidden on a course (usually in the woods)
General Ham Resources
There are ARDF clubs all over the place! It is quite a popular sport.
Here are some online links to get you started:
Local Club Activities
Not only does Raleigh, NC have it's own club, but several club members are world champions!
The club is the Backwoods Orienteering Klub and it is very active. They have beginner classes and even let first timers borrow any needed equipment.