Tree climbing is primarily seen as a childhood activity, but Peter “Treeman” Jenkins didn’t want to give it up just because he reached adulthood. As a rock and mountain climber-turned tree surgeon, Jenkins knew the importance of safety equipment for climbing but also recognized that standard rock climbing gear wouldn’t work well for wither human or tree in a living environment. In 1983, he founded Tree Climbers International to connect a broader community of tree-climbing enthusiasts and train them in safety techniques for responsible climbing. The same year, he opened a tree-climbing school in Atlanta, and since those first days, he has expanded to training recreational and professional tree climbers alike.