Outdoor Odyssey: Journey Through Nature’s Lessons was implemented as a Professional Development Activity for youth workers. The project was coordinated by Fundacja Innowacyjnej Edukacji and implemented with the support of the Polish National Agency, FRSE. The training course took place on 22–30 August 2025 and gathered 27 participants: youth workers, educators, youth leaders, from 8 countries: Poland, Estonia, France, Greece, Latvia, Lithuania, North Macedonia and Sweden. The project was created in response to needs identified by the partner organisations and youth workers in their local communities. In recent years, many youth workers, educators and young people have faced increased stress, emotional overload, uncertainty, burnout risk, digital fatigue and weaker connection with nature and face-to-face community life. These challenges influence not only the wellbeing of youth workers themselves, but also the quality of their daily work with young people. Therefore, the project focused on outdoor education as a practical, accessible and inclusive approach for supporting wellbeing, resilience, cooperation, self-awareness and stress management in youth work. The main aim of the project was to let youth workers actively working with young people discover outdoor education specifically as a tool for improving mental wellbeing and reselience and develop their competencies to apply newly gained knowledge in their practices, especially in relation to supporting mental wellbeing among youth. The project approached mental wellbeing from an educational and preventive perspective, not as a medical or therapeutic intervention with specific focus on building reselience. We wanted to strengthen youth workers’ capacity to create safe, meaningful and reflective outdoor learning experiences that can support young people in dealing with stress, building resilience, developing social skills and reconnecting with themselves, others and nature. The concrete objectives of the project were: -discover outdoor and experiential learning, types of outdoor education activities -identify the stress factors which influence youth workers in partner countries -equip participants with the theoretical knowledge on key pillars of mental health and reflect on its incorporation in participan ts’ lives -to give the participants an opportunity to directly experience various outdoor methods and techniques in order to improve th eir mental health and connection with nature -to raise participants’ awareness of appreciation for nature through learning values in outdoor education -reflect on ways of incorporating these methods and techniques into their daily work with youth for stress- management inclu ding young people with fewer opportunities -to train youth workers in using stress-management tools in youth work in different contexts -develop participants competences in designing, planning, implementing and evaluating outdoor and experiential learning ac tivities for mental health -to increase knowledge of the participants on Erasmus +, support creating new project ideas based on using outdoor metho ds and promote networking and cooperation Through the project, we wanted participants to gain both knowledge and experience. Knowledge was provided through theories, tools and methodologies related to outdoor education, experiential learning, wellbeing, resilience, group dynamics, leadership, reflection and Erasmus+ cooperation. Experience was created through outdoor practice, group challenges, reflection spaces, peer learning, expedition, self-directed learning and facilitation practice. This approach allowed participants to make the learning personal, practical and transferable to their own youth work contexts. We also wanted to promote outdoor education as a broader educational approach. In the project, outdoor education was understood as learning about the natural world, learning for responsibility and care towards nature, and learning through direct experience in nature. This means that nature was not only a background for activities, but also a learning environment supporting personal, social and professional development. Another important objective was to strengthen the quality of youth work in the participating organisations. By developing youth workers’ competences in designing, implementing and evaluating outdoor activities for wellbeing and stress management, the project aimed to increase the capacity of partner organisations to offer more inclusive, engaging and sustainable activities for young people, including young people with fewer opportunities.