By implementing five interconnected activities, we aimed for partner organizations and youth workers to systematically strengthen knowledge, skills, and organisational practices at the intersection of environmental protection, digitalisation, and sustainable tourism—and to transfer this learning into their local communities. The project’s core purpose was to empower youth workers to move from declarative support to repeatable, measurable, and replicable action: from designing outdoor educational activities and the responsible use of cultural heritage, to creating digital awareness content and building long-term partnerships with organisations that already practice sustainability. Within the youth workers’ mobility “Be the change you wish to see,” participants were guided toward personal and organisational role-modeling. The title was chosen as a programmatic compass: change your own habits and methods first, then expect it from others. Working primarily indoors, participants developed non-formal methods and tested them in practice; on the penultimate day they carried out field challenges involving local residents. The result was ten short awareness videos and four concepts for sustainable stewardship of cultural heritage, which enhanced digital literacy, public speaking, and the ability to connect environmental topics with responsible use of space. The Iceland job-shadowing, despite its shortened format, provided insight into the operations of a hostel network where sustainability, interculturality, and digitalised management are core practice. The activity’s goal was to translate operational lessons into youth work: how to embed sustainability in accommodation choices, logistics, and programming, and how to use EU opportunities—especially the European Solidarity Corps and Erasmus for Young Entrepreneurs—for longer, competence-building pathways for young people and youth workers. The six-day study visit in Slovenia deepened understanding of sustainable tourism through concrete cases (e.g., eco-rafting on the Mura River; Vinarium; Bukovniško Lake; Ocean Orchids; Visit Haloze; Turnišče manor), and structured reflection converted observations into plans for use in local youth work. At partnership level we also agreed on visibility guidelines, a stronger role for participants in communication, and the transfer of knowledge to the local level in the second half of the accreditation period. The two-day networking and community-building activity in Subotica addressed a participation gap caused by visa denials and strengthened the role of the Serbian partner, who contributes recognised non-formal methods (bibliotherapy, storytelling). It also pursued a clear development aim: together we prepared the basics of an application in the Beneficiary Module and supported understanding of application procedures, enabling the Serbian partner to submit a project proposal independently for the autumn deadline. Accordingly, the project’s goals were multi-layered: to raise the quality of youth work in environmental topics and sustainable tourism; to develop and pilot transferable non-formal methods with a strong digital component; to increase organisational capacities for international cooperation (from planning, logistics, and digitalised processes to visibility); to consolidate partnerships and create conditions for long-term pathways, including volunteering (ESC); and to ensure that learning flows into the partners’ regular work and into local communities. By the end, we observed a clear shift—from knowledge to implementation, from isolated events to processes, and from projects to longer-term partnerships—which will enable more local activities for young people and more long-term mobilities in the coming years.