The Aracena Caves are a complex of caverns located in the town of Aracena, in the province of Huelva, in southern Spain.
These caves were discovered in 1886 and are among the most impressive in Andalusia.
The caves were formed over thousands of years by the action of underground water on layers of limestone. Visitors can explore around 1,200 meters of underground galleries, with impressive stalactites, stalagmites, and other rock formations.
The caves have a constant temperature of around 19 degrees Celsius, making them a refreshing escape from the Andalusian summer heat. There are several visiting areas, each with unique features, such as the Gallery of Wonders, the Crystal Room, and the Goat Gallery.
In addition to the natural beauty, the Aracena Caves have an important role in the culture and history of the region. Human remains found in the caves indicate that they were used as a shelter by prehistoric people more than 100,000 years ago. During the Spanish Civil War, the caves were used as a hiding place by Republican fighters.