Celebrating the year of caves and karst by touring a cave this year.
2021 has been declared the International Year of Caves and Karst by the United Nations, and local cave enthusiasts say it’s none too soon. After all, about 20% of the earth’s land surface is affected by karst—slowly dissolving rocks that create landforms such as sinkholes, ridges, fissures, and most famously, caves. This year, theInternational Union of Speleology, along with caves all over the world, will be celebrating these unique landforms and spreading knowledge about how we can all enjoy and help preserve them for the next generation.