The project, launched in 2023, began with the development of a new environmental education program, structured as a learning sequence with increasingly complex themes, from middle school (6th grade) to high school (12th grade). Currently, educational materials are being developed for each theme, such as water, air, pollution, ecosystems, species protection, etc. To test these resources, students from partner organizations in France, Lithuania, Romania, Turkey, and Spain traveled to Spain in late September 2024. Student feedback helped refine the educational content. Hydraulique Sans Frontières (Hydraulics Without Borders), which has expertise in water and its treatment, addresses all aspects of this field.