Santo Tomás Cave, Limestone cave network in Pinar del Río Province, Cuba.
The Santo Tomás Cave system extends through 46 kilometers of passages across seven distinct levels within the Sierra de los Órganos mountains.
Indigenous populations left rock art on cave walls, and later the caves provided shelter for escaped slaves from nearby sugar plantations.
Local farmers traditionally collected bat guano from the caves to fertilize their tobacco fields, contributing to Cuba's agricultural practices.
Visitors must join guided tours with certified speleologists to explore the first three levels of this National Monument's underground network.
The cave system contains multiple fossils from the Pleistocene era and represents the largest cave complex in the Caribbean and South America.
Location: Pinar del Río Province
GPS coordinates: 22.54583,-83.83972
Latest update: May 9, 2025 12:42
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