As part of the promotion of the International Economic Relations program, Dr. Konrad Czernichowski, together with Erasmus students from Tanzania: Esther Muga, Emmanuel Humba and Fredy Byamungu, conducted a lecture at Henryk Sienkiewicz Secondary School in Łuków. On the occasion of Water Day (22 March), it was all about access to clean water as one of the UN Sustainable Development Goals on the example of Tanzania and Cameroon. The students' presentations greatly enriched the lesson, and the students listened to the presentations with interest. At the end, there was a quiz in which small gifts with logo UMCS were won by Oliwia Markiewicz, Paulina Filipek, Paweł Kłoda and Anna Osial. Congratulations! We would like to extend our gratitude to the school management and Ms. Danuta Markowska for organizing the meeting.