The Panthalassa project stems from a desire to concretely address one of the most pressing challenges of our time: water pollution, which affects rivers, seas, and local communities across Europe. The underlying idea is not only to raise young people's awareness of this issue, but to transform the experience into a structured, non-formal education program capable of fostering skills, responsibility, and a sense of active citizenship. From a youth work perspective, the project represents an opportunity to demonstrate how the intercultural, participatory, and inclusive approach typical of Erasmus+ can become a catalyst for awareness and change. The objectives are multi-level. The first is to raise young people's awareness of water pollution, providing basic knowledge but, above all, practical experiences to understand the real impact of the problem. These will not be simple lectures, but active and engaging activities: collecting and analyzing water samples, nature treks to observe the river ecosystem, and creative workshops that will transform scientific data into accessible visual and digital messages. Young people will thus be able to experience environmental issues firsthand, connecting them to their daily lives and the local contexts from which they originate. The second objective is to strengthen participants' transversal skills through youth work methodologies. Young people will not be spectators, but protagonists: they will lead activities, facilitate discussions, manage digital content, and foster interaction with the local community. This approach will foster the development of the eight European key competences, from multilingualism to social and civic skills, from environmental awareness to digital skills. The experience will be continuously accompanied by moments of individual and collective reflection, so that each participant can recognize and value their own personal growth path, which will then be documented in the Youthpass. The third objective concerns the promotion of active and inclusive citizenship. The project includes a public event on the Pescara seafront, where young people will set up information stands, visual exhibitions, and interactive activities to directly engage citizens. This moment will be an opportunity to step outside the internal dimension of the youth exchange and engage with the community, sharing what has been learned and stimulating broader reflection. The impact will not be limited to Italy: partners in various countries will carry out follow-up activities, involving schools, youth centers, and local associations, thus multiplying the experience's impact. Another cross-cutting objective is to ensure the inclusion of young people with fewer opportunities. The national groups were composed to give space to young men and women from rural areas, with fragile educational backgrounds, or with limited opportunities for international mobility. This aspect is central because the project aims to demonstrate that youth work, if well-structured, can become a powerful tool for empowerment for those normally left on the margins, offering a safe and stimulating environment in which to experiment with new skills and strengthen self-confidence. From a youth work perspective, Panthalassa therefore aims to create a model in which information, direct experience, and activation are intertwined. The project's strength lies in the balance between content and method: young people will not only acquire knowledge about water pollution, but will also learn to work in teams, communicate effectively, engage with different cultures, and transform ideas into concrete actions. Ultimately, the project aims to strengthen the role of young people as agents of change, capable of raising awareness in local communities, disseminating sustainable practices, and personally contributing to building a more equitable and environmentally friendly future. Panthalassa is therefore not just a learning experience, but a laboratory of active citizenship and youth empowerment, where participants will have the opportunity to grow as individuals, as European citizens, and as promoters of social change.