Established in 1975 as the Bush Mountain Outdoor Activity Center, the initial purpose of the Outdoor Activity Center (OAC) was to involve children and adults in environmental issues through education about conservation, ecology and the natural environment.
Located approximately five miles from downtown Atlanta, this 26-acre urban nature preserve includes about 2.0 miles of trails, as well as a team-building ropes course, and a children's nature themed playground. Among the learning facilities are a tree house classroom, a 650-gallon freshwater aquarium, and a multi-purpose building. Adjacent to the facility is a community-run vegetable garden and a practice lot for the Atlanta Black Crackers, a former Negro League baseball team and a unique sustainable urban farming system, Bioponica.