Divide the girls into teams and then line them up (lines spaced about 2 arm's widths away) facing a position 6 metres away. In front of each line at the 6m position, make a mark on the ground.

When a whistle is blown, the first girl in each line must run as fast as she can to the mark on the ground, and keeping her index finger on the mark, turn around 15 times. After this, she must run back (if she can!!) to her line and touch the hand of the next person, who then does the same.