Moinhos Velhos Cave, Natural cave system in Mira de Aire, Portugal.
Moinhos Velhos Cave is an extensive underground network that cuts through limestone formations and features rivers, lakes, and natural chambers throughout its passages. The system consists of multiple main corridors branching in different directions to create a complex subterranean structure.
A shepherd named Manuel da Troucha discovered the cave in 1925, followed by its first systematic exploration by Francisco Abreu in 1946. These early investigations established the foundation for later scientific study of the cave structure.
The cave holds significance for the local community as a natural landmark that shapes the region's identity and attracts curious visitors seeking to understand the geology beneath their feet. Today it serves as a place where people can directly encounter the underground landscape that formed over millions of years.
Visitors explore the cave best with expert-led guides who provide informative explanations about the limestone formations and the cave structure. It is wise to wear comfortable shoes and prepare for uneven, damp surfaces throughout the tour.
The cave houses specialized species adapted to underground life, including a rare ground beetle and cave spiders found nowhere else. These creatures offer insights into the hidden world of subterranean ecosystems.
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