The cave is formed within the high-purity white marble of Mount Penteli.
During the Byzantine period, the cave served as a hermitage for monks seeking isolation.
The cave entrance holds the remains of two distinct 11th-century Byzantine chapels.
The site is often associated with intense local folklore regarding electromagnetic anomalies, though scientific consensus attributes these to geological quirks of the cave's structure.
Exploration of the cave in the 1990s revealed a complex system of tunnels, leading to restricted access by Greek authorities.
The name 'Davelis' is derived from a 19th-century brigand, Ntavelis, who allegedly used the cave as a hideout.
Davelis Cave, situated on the slopes of Mount Penteli, is a site defined by both natural karst formations and significant historical human intervention. The cave features a main chamber approximately 60 meters wide and 40 meters high. Byzantine-era chapels, specifically dedicated to Saint Spyridon and Saint Nicholas, are built into the entrance, reflecting the site's historical religious usage. The area surrounding the cave is characterized by white marble quarries that historically supplied the material for the Parthenon. Access to the interior has been restricted by physical barriers in recent years due to geological instability and ongoing conservation efforts. The site is a focal point for geological interest regarding the composition of Pentelic marble. It serves as a vestige of the diverse human activity that has utilized the mountain's resources over centuries.
The view of the valley floor framed by the arched entrance of the Byzantine chapels.
Wear hiking boots or shoes with excellent grip, as the approach involves loose marble scree and uneven terrain.
Bring a high-powered flashlight if visiting the outer perimeter, as natural lighting fades quickly near the cave mouth.
Carry sufficient water, as there are no facilities or vendors on the mountain slope.
Attempting to enter the deeper, gated sections of the cave, as these areas are unstable and legally prohibited.
The inner chambers are currently closed to the public for safety and conservation; outdoor areas remain accessible.
Respect the archaeological and religious nature of the chapels; refrain from climbing on the ancient walls or entering restricted zones.
