Understand
The Yucatan Peninsula in Mexico is home to a fascinating network of underground river systems. These rivers flow beneath the entire peninsula, hidden beneath a giant coral reef that was exposed during the ice ages. Over time, the porous coral limestone gradually dissolved, forming massive cave systems known as "solution caves." Rainfall, slightly acidic in nature, played a crucial role in this process by dissolving the alkaline limestone. Inside these caves, you can witness awe-inspiring geological formations such as stalactites and stalagmites. Some of these caves have collapsed, allowing seawater to partially or completely flood the cave systems. The water table of the peninsula is a unique mix of seawater at sea level and freshwater floating on top at varying depths. The Yucatan Peninsula is estimated to have around 30,000 cenotes, which are exposed access points to these cave systems. Thousands of miles of underwater cave passageways have already been explored, with two cave systems boasting over 140 km of explored passages. Cenotes not only offer natural beauty but also hold great archaeological significance, as many of them are considered Mayan cultural and archaeological sites. Divers have discovered ancient Maya artifacts in these cenotes, indicating that the water table was once significantly lower, allowing the Maya to inhabit the caverns. Exploring these cenotes is a thrilling adventure that reveals the secrets of both nature and ancient civilizations.
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