Santo Tomás Cave

Santo Tomás Cave is a limestone system in the Sierra de los Órganos mountains of Pinar del Río Province, with passages that descend through seven distinct levels. The network contains halls with different formations and chambers that visitors explore on guided tours.

Indigenous peoples originally left rock art on the cave walls, and later people fleeing from nearby sugar plantations sought refuge inside. This long history shows how the site served different purposes across time.

Farmers in the area traditionally collected guano from the cave to use as fertilizer for their tobacco crops. This practice connected the cave directly to local agriculture and daily life.

Visitors can only explore the first three levels with certified guides, as the cave is protected as a National Monument. The tours require basic fitness, so visitors should prepare for the physical demands beforehand.

The cave system holds fossils from the Pleistocene era, making it one of the largest underground complexes in the Caribbean. These remains tell the story of how the landscape and climate changed over thousands of years.