The Erasmus+ KA210 “Zero Waste Schools” project successfully fostered cross-cultural exchange and environmental education through this final mobility in Zamość. Teachers from Italy, Turkey, and Belgium left equipped with actionable knowledge and practical strategies—such as VR-based waste simulations, Ozobot recycling programs, and OZE demonstrations—to implement sustainability practices directly in their institutions. The event strengthened international partnerships by blending hands-on eco-workshops, cultural immersions like Polish folk dances, and site visits to apiaries and wastewater facilities, inspiring participants to replicate these innovations locally while respecting diverse educational contexts.This collaboration not only elevated environmental awareness but also enhanced digital- competencies, soft skills, and inclusivity, aligning with Erasmus+ priorities for innovative, student centered learning. The exchange of best practices— from heat pump efficiencies to biodiversity walks in Roztocze— will continue under the Erasmus+ framework, supported by eTwinning toolkits, shared lesson plans, and ongoing digital platforms for sustained impact across partner schools and communities.