Caves of King Cintolo, Natural cave system in Argomoso, Spain.
The Caves of King Cintolo form an underground system within limestone rock, containing numerous passages. Throughout this network are stalactites and stalagmites in different stages of formation.
The cave was discovered in 1870 by archaeologist José Villaamil y Castro, who found significant bone remains near the entrance. These discoveries were later taken to the Santiago museum and helped reveal early human presence in the area.
The name comes from local legends about King Cintolo, a ruler connected to the Tar Valley, and links this place to Galician folklore. These stories remain alive in how local people speak about and imagine the site today.
Visits are only possible with guided tours arranged through the Concello de Mondoñedo administration. Wear comfortable shoes and bring warm clothing, as the cave is cool and passages can be slippery.
The cave comprises three parallel passages that interconnect, making it the longest such system in Galicia. New sections continue to be explored and mapped since its discovery, showing the system is still being studied.
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