What is the nation where archaeologists uncovered the world’s largest flooded cave system?

Archaeologists discovered the world's largest flooded cave system in Mexico known as the Sac Actun system located in the Yucatan Peninsula. This extensive underwater network spans over 347 kilometers and holds significant archaeological value due to its preservation of Mayan artifacts and ancient human remains. The discovery enhances understanding of Mesoamerican history and geology. Such caves provide insights into ancient climates and cultural practices. Exploration of these submerged environments continues to reveal critical historical data advancing research in archaeology and environmental science.