This purpose of this study was to investigate the implementation of positive behavior interventions and support (PBIS) in a summer camp. The camp provided physical activity opportunities to underserved children attending a summer program at a local, rural public school. Certified physical education teachers led activity stations. Participants in the study were 25 boys and girls aged 9 to 12. Teachers at one activity station implemented PBIS (i.e., Station 1), and teachers at a second activity station (i.e., Station 2) did not for the duration of the study. The dependent variable was the behavior marks documented by the teachers and the independent variable was PBIS instruction. Results indicate a significant difference between Station 1 where PBIS was implemented versus Station 2 where it was not. Implications are discussed.