Running!
Metcon
Every 8 minutes, for 40 minutes (5 sets) for times:
400 Meter Run
30 Wall Ball Shots (20/14 lbs)
400 Meter Run
30 Push-Ups
If any of your first sets take more than 7 minutes, reduce your reps or the distance of your run such that you are forced to work hard, but still earn 60 seconds of rest.