1. Choose an open field to be your "ocean".
2. Assign one person the job of the shark. They will stand in the middle of this field. Everyone else is a minnow, and starts at a safety zone.
3. Mark two safety zones, one for each end of the field.
4. The minnows "swim" (run) back and forth between the safety zones. The shark is supposed to try to tag the minnows.
5. Any minnow who is tagged must stand still in the spot that he or she was caught in, legs spread apart, and arms stretched out to the sides.
6. Other minnows may save stranded minnows by diving to swim between their legs on their way to a safety zone.
7. The last minnow left is the next shark.