Theather by Nature is an international training seminar for the development of competencies for workers and youth leaders in the prevention and resolution of conflicts, through the use of theater methodology and non-violent communication for educational activities in a natural environment. The objective of this project is to prepare youth leaders, facilitators, project coordinators and youth workers, to face situations of conflict or misunderstanding in environmental education projects, at a natural environment, where it is necessary to facilitate that the participants can express themselves and reach a commitment for the common good. The emergence of conflicts inherent in human relations, and our goal is that they never threaten the basic sense of security of young people and that these conflicts are not an impediment to the learning process of projects, but on the contrary, we learn how to take advantage of them as a source and motor of learning. The development of these competences for coexistence is based on the ability to know and understand our own needs and know how to communicate them to others. An especially valuable skill when working in a multicultural environment, or with young people who present exclusion factors, where personal needs can be very different from what we expect and not knowing how to share them can come the frustration of the process of communication and coexistence . In short, with Theater by Nature, we want to share experiences with all participating entities and create a space where workers and youth leaders can share, reflect and learn from the particularities of an educational project in the natural environment and how to improve communication between all the participating actors.