The aim of this research was to classify the opinions of the disabled participants and educators on Erasmus+ Key Action 2 Project on non-formal learning regarding whether they knew the meaning of non-formal learning, through which non-formal learning activities happening during the Project workshop, and whether this learning had a contribution to their personal and professional development. The research is a qualitative study with a multiple holistic case study design. Data were collected from interviews using semi-structured interview forms. At the end of the research, conclusions were classified under five themes. The first theme was that they did not know the exact meaning of non-formal learning. The second theme was that there were some non-formal learning activities which the participants were engaged in during the Project workshop. The third and fourth themes were that the non-formal learning had a positive effect on their personal and professional development. The fifth theme was metaphors they produced for non-formal learning. [This article was presented at the 9th International Congress on New Trends in Education, 10-12 May, 2018 in Antalya in Turkey.]