1. All players should stand in a straight line about 50 feet from the finish line.
2. One person stands at the finish line, turns their back and says "green light", counts to ten, and says "red light" and then turns around.
3. Meanwhile, while the light is green, the players need to advance as far as possible from the starting line towards the finish line.
4. Whoever is seen still moving after the "red light" must return to the starting line.
5. The first person to pass the finish line wins!
You can even put in some variety, by doing this on rollerblades somewhere safe, or in a swimming pool if the players can swim well.