This strategic partnership consists of 4 secondary schools (1. ITCTS VITTORIO EMANUELE II, Bergamo, Italy; 2. ANIARAGYMNASIET, Göteborg, Sweden; 3. IES BELLAVISTA, Seville, Spain; 4. Berufliches Schulzentrum, Amberg, Germany). We consider the enviromental question fundamental for every present society but, in particular, two of these schools offer tourism courses, so together we have worked out an Erasmus+ KA2 project titled "By-Train Training through Europe towards Sustainability". Our aim is: - increasing awareness about climate changes and the environment leading to more sustainable general and touristic practices with the support of local stakeholders - improving participants' language skills and communicating competences - implementing non-conventional teaching methods by combining theory with more effective transnational experiences and cooperation The more than 150 participating students (teenagers aged 15 to 19), constantly monitored by teachers, will work in groups (both nationally and transnationally), using English and Spanish as vehicular languages, in order to do the following: - investigate the state of our planet at global and local levels - effect surveys, compare data with mates and draw conclusions - organize, propose and carry out visits and excursions liable to widen and deepen their knowledge of the environmental problems and the effects produced by tourism on urban and natural scapes After a preliminary trip to Andalucia, in spring 2016, the core of the project will be a train journey from Göteborg to Bergamo passing through Germany. The 32 students (accompanied by 8 teachers) who will live this fascinating experience, "slow traveling" around Europe, will have to look around them with critical eyes, take pictures and produce a travel report. By the end of the project our students' outcomes will be: A. A comparative analysis of the state of our environment both at global and local levels with a specific focus on the footprint left by tourism on our urban and rural scapes. B. A choral diary of an odd group of young slow travelers with a photo report on the journey experience “By-train training through Europe towards sustainability”. C. A youth manual for sustainable tourism with some useful tips for travelling around and between Bergamo, Gothenburg, Amberg and Seville. Basing on these, teachers will write down their GUIDELINES FOR TEACHING SUSTAINABLE TOURISM, in English and Spanish. We foreseen a certain local impact, as we are going to spread the project results by means of our schools websites, facebook and through a number of multiplier events, such as a few days / a week during which the four schools will organize the following: • involve staff, students and families to comply with some very simple ecological practices • exhibit students’ photo report • give a conference to publicize the students' outcomes and the intellectual outputs produced. But on a higher level (regional, national and international) we also wish to be read and become a model for other schools and future projects, which will consider it necessary to join us in this engagement in defense of the planet where we all live. That is why we are planning to take part in the World Environmental Education Congress for the year 2017, WEEC 2017.