Nordic walking is a cross between cross country skiing and walking. Watching the Youtube video below is going to be more useful than me trying to explain it.

My hope is that nordic walking will some day be as popular as jogging. I would say it's as good as a workout (if not better since it uses the arms), and it's far easier on the joints.

[video:http://www.youtube.com/watch?v=-mBBE5lS_ps autoplay=no]