The red ochre hand stencil is widely cited by researchers as the oldest known example of cave art in the world.
Archaeologists have identified 27 distinct layers of sediment, providing a continuous record of human habitation from the Middle Paleolithic to the Bronze Age.
The cave contains rare depictions of human figures, which are notoriously uncommon in Paleolithic cave art compared to animal motifs.
The site was discovered in 1903 by Hermilio Alcalde del Río, a pioneer in the study of Spanish prehistoric art.
Monte Castillo is one of the few places in the world where multiple caves featuring prehistoric art are concentrated within a single hillside.
The Cave of El Castillo is a UNESCO World Heritage site located in Puente Viesgo, Cantabria, famous for housing some of the oldest known cave paintings in the world. The site features an extensive archaeological stratigraphy that spans over 150,000 years of human occupation. Visitors can observe a diverse array of Paleolithic art, including over 150 depictions of animals such as bison, horses, and deer. A standout feature is a red ochre hand stencil, dated to at least 40,800 years ago, making it one of the oldest dated cave art images globally. The cavern forms part of a larger complex known as the Monte Castillo caves, which includes the nearby Las Monedas, Las Chimeneas, and La Pasiega caves. The interior maintains a high level of preservation due to consistent microclimatic conditions. Tours are conducted in small groups to minimize environmental impact and ensure the longevity of the site's delicate pigments. The cavern is cut into a limestone massif overlooking the Pas River valley.
The exterior viewing platform near the cave entrance, which offers a panoramic view of the Pas River valley.
Book your tickets online well in advance, as group sizes are strictly limited and sell out weeks ahead.
Wear closed-toe, non-slip shoes with good grip, as the cave floor is steep, uneven, and can be damp.
Bring a light jacket, as the cave maintains a cool, constant temperature regardless of the outside weather.
Do not attempt to visit without a pre-booked reservation, as walk-in access is rarely available.
Closed on Mondays and Tuesdays year-round; may have seasonal variations in tour frequency during mid-winter.
Photography is strictly prohibited inside the cave to prevent light damage to the ancient pigments; do not touch the walls or cave formations.
