This study examines the effects of outdoor developmental adventure programming (ODA) on college students' self-esteem. Although some previous studies have shown that outdoor adventure programming has positive effects on self-esteem, others did not find any effect. A quasi-experimental study was conducted over 5 months, which included two pretests and two posttests to address some limitations of previous studies. A total of 84 participants completed the "Questionnaire d'estime de soi hiérarchique," a questionnaire assessing self-esteem on four occasions. The experimental group (outdoor adventure; n = 32) was compared with the control groups (travel, n = 17; soccer, n = 35) using repeated measures of covariance analyses. Positive and significant increases were found for the athletic dimension of self-esteem and for global self-esteem for the experimental group (outdoor adventure) only. The increased benefits provided by the combination of adventure and sports in ODA, over sports-only or traveling-only interventions, underline the importance of developing ODA with college students.