The International Year of Caves and Karst: Celebration at UNESCO on 13 September 2021 in Paris

The International Year of Caves and Karst is organized by the International Union of Speleology (UIS) to celebrate caves and karst internationally and teach the world about their importance.
The most important celebration in speleological history will occur on 13 September 2021 in Paris, France, where the United Nations Educational, Scientific, and Cultural Organization (UNESCO) has invited the UIS to celebrate at UNESCO Headquarters!
More Info
http://iyck2021.org/