World Water Day - What Does Water Mean to You World Water Day is an annual United Nations observance day on March 22 that highlights the importance of freshwater. The day is used to bring attention to the need for sustainable management of freshwater resources worldwide. Events In 2021 NGRREC partnered with Swarovski Waterschool to put on a photography contest to celebrate UN World Water Day. It was open to all local students from Kindergarten to 12th grade. The theme of the art contest was “What Does Water Mean to You.” Photography pieces were highlighted on NGRREC’s social media accounts throughout the week following World Water Day. They were also be highlighted on the city of Alton website to promote sustainability.