The main purpose of the youth exchange, entitled "From Grey to Green: Sustainability and Regeneration through the Four Dimensions", was to empower young people in the field of sustainable lifestyles. We saw the youth exchange as a very good contribution of knowledge to the everyday formal school system. Through the project we wanted to create a safe environment where knowledge, skills and tools for regenerative living can be exchanged in a relaxed, informal way. The motivation for sustainable, regenerative living stems from the desire of young people to successfully combat climate change. The aim was also to achieve experiential living in the community. The desire was to educate about these issues in a positive way and to work together to find solutions, as there is a lot of despair, negativity and climate anxiety among young people about the climate crisis. It was important for us to do more learning outdoors, without computer screens, as the Covid-19 pandemic has had a very negative impact on young people in terms of increasing digital addiction and emotional alienation. We also wanted to address social hardships, which have been exacerbated during the global health crisis, through community living. In addition to the above, the project also aimed to address building better self-esteem and self-confidence, respect for difference and increased identification with European nationhood. The specific objectives we wanted to achieve are: - to create youth-initiated activities (from young people for young people) that offer an empowering experience in the fight against climate change; - to offer the opportunity of this kind of experience to as many young people with fewer opportunities as possible (of course, according to the capacity and compatibility of the organizational team); - create an opportunity for non-formal learning (with an emphasis on outdoor, non-digital learning); - knowledge transfer in all four dimensions of sustainability (ecological, economic, social-cultural, these include permaculture, natural building, community building - non-violent communication, sociocratic decision making, active listening, building quality, and cordial relationships, etc.). - personal and emotional development (to address the lack of connection with fellow human beings); - connecting with nature; - to address the European Union's green transition (environmentally responsible everyday behavior, and carbon neutrality); - learning about sustainable growth and social-sustainable entrepreneurship; - to create a field for learning about the national identity of each country and thus to better understand and recognize one's own and common European identity