PHES students will walk or run laps around the outdoor track in order to raise money for Smile Train, an international children's charity that provides free cleft lip and cleft palate repair surgery for children in more than 85 countries. Money previously raised by PHES students for Smile Train paid for a total of 748 cleft lip and cleft palate repair operations. The goal for this year's event is to raise enough money to pay for an additional 52 operations, which would bring the 10-year total to 800 operations.