On September 23th, we organized together with Mazurian Landscape Park SCIENCE FESTIVAL 2016 in the Hydrobiological Station in Mikolajki. We were visited by 250 young people from high schools, middle schools and primary schools from the entire region (Mikolajki, Mragowo, Pisz, Baranowo, Woznice), for which we have prepared the following lectures: 1. The strangest lakes of the world, 2. Mexico – wild life of land of the Maya 3. Owls – nocturnal hunters, 4. Postglacial landscape of Mazurian Landscape Park, 5. Little-known animals of the Arctic Ocean 6. Microscopic workshop (plankton and aquatic insects) (TJ)