On October 15-16, 2018, the Autumn Hydrobiological Workshops took place at the Nencki Institute Research Station in Mikolajki, which for three years we have been organizing together with the Great Masuria Lakes Foundation for the schools in our region. During two days 120 students from primary schools in Staświny, Hejdyk, Radzieje and Baranów took part in theoretical and practical classes.