The document summarizes the activities of a mixed group over 5 days in Belgrade, Serbia. On the first day, the group welcomed guests and toured the school and local area, including a lecture and folklore concert. The second day included visits to two university faculties, a walking tour of a street and park, and a museum. The third day was a trip through historical sites along the Danube River with a cleanup activity. The fourth day consisted of a nature outing and visits to a church and museum. The fifth day focused on an ecological organization presentation and discussion, and receiving certificates.