One great program idea is the Run with the Principal day started by Pepper Butler at New Republic School in Salinas. Pepper has a few days per week as part of the JUST RUN program where students can "Run with the Principal". Pepper gets in her own run and many many kids tag along with her.
This is usually done on the track or the athletic field. Its amazing how many kids are motivated to run, be healthy, and stay active, by seeing that their principal does the same thing.