Our project brings together students from 5 countries (Turkey, Poland, Germany, Romania and France) from 15 to 20 years old. The goal was to study and develop natural sites. For this, we proceeded in several stages. Using a protocol developed by the French partner, we have identified the animal and plant species present on the sites. Each school was able to educate students about the environment and the practice of a scientific method. This work required the collaboration of town halls (Olstyn in Poland for example), competent authorities (Sylvique in Romania for example), local institutions (University of Kocaeli in Turkey for example) and associations (association of hikers in France for example).Various intellectual productions were produced at this time of our project: lexicon (Romania), prospectus (Poland), page etwinning (Germany), calendar (France), page Padlet and logos for all.We then carried out various concrete actions on the various sites: cleaning (Poland and Germany), installation of educational panels (Turkey, France and Romania), pedestrian route route (France and Romania). In partnership with town halls and tourist offices, leaflets with symbols and common layouts were made available to the population.In each school, the group of participants was in their twenties. During the mobilities, each partner brought between 6 and 12 students. These students were volunteers to invest in a European project and their participation was only their goodwill.Our schools have long been part of a citizen and European approach. Through these actions, we promote the learning of autonomy and the initiative of our students.Our students have no particular qualities or difficulties. However, we want everyone to have the chance to progress at their level and to flourish in an original and rewarding way.Three of the partners have already collaborated in the past; they formed an effective and complementary team with the two new partners. This subject has allowed to progress in foreign language and autonomy while exploiting their various specialties (scientists for natural species, linguistic exchanges, artistic panels and logos).Thanks to a precise and feasible schedule and to our monthly meetings on Skype, the different deadlines were respected. The mobilities were the occasion to expose the results and valid the steps.We have all noticed in our students progress in foreign languages ​​and taking initiative. During the mobilities, the different groups of students quickly mixed and everyone found that he was able to communicate. Since then, progress has been visible. Many students stayed in touch via social networks. Everyone was also able to discover new cultures.In addition, students visited and studied natural sites close to home. They discovered the fauna and flora around them.The benefits for our students have been many: open-mindedness to foreign cultures, discovery of nature (local and foreign), use of foreign languages, fostering eco-responsible behavior, taking initiative. For partner cities, the benefit lies in walking routes, exchanges with local primary schools and tourism promotion.