Grotter i Serras de Aire e Candeeiros Naturpark

Caves and Karst Heritage

Explore the geological and archaeological heritage of the Serras de Aire e Candeeiros Natural Park. This collection features the extensive Gruta do Almonda, the largest underground cave system in Portugal, and the Algar do Pena, which contains one of the country's largest subterranean chambers. The list includes the preserved Roman road of Alqueidão da Serra and the unique Anta-Capela das Alcobertas, a megalithic dolmen converted into a Christian chapel. These sites showcase the region’s limestone formations, prehistoric remains, and long-standing human interaction with the karst terrain.