Cave diver explores Yucatán sinkhole in stunning new photography

The Yucatán Peninsula in southeast Mexico is characterized by numerous cenotes, or sinkholes, formed by the impact of a giant asteroid 66 million years ago. This event created a significant depression and fractured the limestone bedrock, leading to the formation of underground rivers and caves over millions of years. Photographer Martin Broen has documented his explorations of 280 cenotes, capturing their beauty in his book, Light in the Underworld, which showcases atmospheric photographs taken in these unique environments. One notable cenote featured in Broen's work is Chan Aktun Ha, meaning 'little water cave' in Mayan, located in Quintana Roo. The cenotes have been submerged for the past 8,000 years, and during rain showers, tannin from the surrounding vegetation creates a distinctive tannic acid solution, resulting in surreal colorations within the caverns. Broen emphasizes the importance of these natural formations, as they not only reveal the region's history but also serve as vital sources of fresh water. Broen's dives have uncovered unique fossils of extinct megafauna, evidence of early Palaeo-Americans, and Mayan artifacts, highlighting the cenotes as windows into the past. However, he warns that these vital ecosystems face threats from pollution, deforestation, and development. Through his photography, Broen aims to raise awareness about the significance of these underwater environments and the need for their preservation. His book, published by Rizzoli, is intended to inspire a greater appreciation for the hidden beauty and ecological importance of the cenotes, encouraging people to care for the natural resources that lie beneath the surface of the Yucatán Peninsula.