We spent The last 10 days in Porto at the ISPGAYA. It was a university course about digital and sustainable entrepreneurship. Together with students from AP Hogeschool Antwerpen, Centria University of Applied Sciences, University of Lodz and Dundalk Institute of Technology we worked in interdisciplinary and international Teams on concepts for Applications which helps to make tourism more sustainable. Beside of learning a lot about Portugal and the other European cultures, we had great input talks about App development, Project management and Business development. Thank you so much Prof. Dr. Katharina Simbeck from Hochschule für Technik und Wirtschaft Berlin for making that possible. João Monteiro from ISPGAYA, thank you so much for having us and showing us around to so beautiful places. We felt very welcomed and enjoyed the well equipped rooms for working on our Projects.