The first short-term exchange of pupils took place in Greece from 21 October till 27 October. Teachers and pupils from Cholargos hosted 24 pupils and 12 teachers from partner countries: Croatia, Italy, Lithuania, the Netherlands and Poland. We had lots of activities at school: partners presented their coluntrie, towns and schools, teachers conducted 6 climate based lessons in English and pupils performed a school play "The world is sick". We went to the town hall where we were addressed by the mayor of Cholargos. Participants had lectures and workshops at the Center for renewable energy sources and at the Academy of Athens, where Christos Zeferos, a renowned scientist, explained climate changes to project participants. The whole group visited Vavrona wetlands and watched some of numerous bird species. We also did lots of sightseeing: Museum of Acropolis, temples at Acropolis, Vavrona museum and Marathon museum. The next meeting will be in march 2019 in Croatia.