Outdoor Action (OA) is Princeton's outdoor education and leadership program. At the start of each school year, OA provides one of the multi-day orientation experiences for the incoming class. During the academic year, OA offers trips and events open to the entire Princeton University community. Activities include hiking, backpacking, canoeing, and rock climbing, as well as speakers and films, instructional classes on outdoor skills, and leadership development workshops.

OA trips and activities are led by students who have completed the OA Leader Training program, which is a comprehensive leadership development program that will teach you how to effectively manage a group or team and teach you the skills you need to know to be comfortable in the outdoors. OA Leader Training is open to all members of the Princeton community and is free for undergraduate and graduate students. No prior outdoor experience is necessary to participate in the OA Leader Training program or any OA activity. The OA Leader community is the largest leadership program on campus and welcomes everyone interested in developing leadership skills to serve others. We can provide you with the knowledge and the equipment to explore and enjoy the outdoors.

OA operates an outdoor equipment rental facility if you want to rent equipment for going on your own trips. OA also runs the Climbing Wall, an indoor rock-climbing gym facility located at the stadium. OA provides open hours for climbing when classes are in session as well as instructional classes for beginners.