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Discover how cenotes and underwater caves in the Yucatán Peninsula were formed through limestone dissolution, sea level changes, and Ice Age cycles. This article explains the geological process of cave formation (speleogenesis) and the role of the halocline in shaping vast underground systems. Learn why cenotes are not only natural wonders, but also vital freshwater sources and records of Earth’s climate history.

Let me guess — you saw a cenote dive video on Instagram. Crystal water. Blue light pouring through the surface. Some diver floating perfectly still in a tunnel that looks like it belongs on another planet.And now you’re curious

Before descending into these mesmerizing systems, ensure you have the right cavern diving training and equipment. Cavern diving sits between open-water and full cave diving — you’ll always remain within sight of natural light but still experience the thrill of overhead environments.