International Union of Speleology

The International Union of Speleology (IUS) is a global organization dedicated to the study and exploration of caves and karst landscapes. It brings together scientists, researchers, explorers, and enthusiasts to share knowledge, promote conservation, and advance speleology—the scientific study of caves. The IUS organizes conferences, publishes research, and supports projects worldwide. Its goal is to enhance understanding of caves' geological, hydrological, biological, and cultural aspects, encouraging responsible exploration and protecting these unique natural features for future generations.