March 22 has been declared World Water Day by the United Nations. The first World Water Day was in 1992. The day aims to raise awareness among people around the world about the importance of clean water and all the issues that arise with it. On that day in 2024, Dik Bol and Els vd IJssel of the Haarlem-Mutare twinning gave a guest lesson Aqua Heroes to twenty enthusiastic students from group 7 of the Meander primary school in Delftgauw.
