BeActiveTogether is a European project that addresses the discrimination and social exclusion still experienced by people with intellectual disabilities and/or mental health challenges. Through adapted sport activities and international participation, the project creates safe and supportive environments where participants can feel accepted and part of a group. At the same time, it strengthens awareness of European rights for persons with disabilities—such as the right to freedom of movement and residence—which are put into practice through international sport actions. The project includes national training activities, the development of good-practice tools, and the delivery of an international sport event involving participants from Greece and Bulgaria, contributing to the sustainable empowerment of individuals and organizations.