In a combined celebration of both the IYCK and the 50th Anniversary of the UNESCO Man and the Biosphere Program and with great excitement, the CaveMAB Network introduces, Together for Caves and Biosphere Reserves, a collaborative video project of nine biosphere reserves from four continents and one global partner organization. The video promotes the understanding, exploration, and protection of the biological and cultural diversity of cave and karst environments through sustainable actions. It celebrates the diversity of and human connection to cave and karst environments within the global network of Biosphere Reserves.