This underground passage sits at a fascinating junction in the landscape, where the dry limestone meets boggy ground that stretches northward to a river. A spring well marks this geological boundary just 10 metres to the west, whilst the surrounding area reveals a complex of archaeological features including a possible rectangular house built directly above the souterrain, a square enclosure, and two circular enclosures positioned 100 metres upslope to the south-southwest.

The souterrain itself is a cramped but intriguing space, fashioned from a natural limestone cavity that ancient inhabitants modified for their purposes. Access today is through a small opening, measuring just half a metre at its widest point, which drops down into an eight-metre-long passage running east-northeast to west-southwest. The eastern section remains narrow at roughly 1 to 1.4 metres wide, whilst the western half opens into a broader, irregular chamber spanning 3 to 3.5 metres. From the southwest corner of this expanded area, a second natural passage branches off to the southeast, extending another 7 to 8 metres through the bedrock.

What makes this site particularly interesting is the clear evidence of human modification within the natural cave system. The broader northwestern end of the main passage features a deliberately constructed stone wall that subdivides the space, suggesting organised use of different areas. Stone lintels were carefully inserted into the natural rock ceiling at two strategic points; one near the eastern end of the main passage and another at the cave’s western extremity. With ceiling heights ranging from just 0.8 to 1.3 metres throughout, this souterrain would have required its users to crouch or crawl, yet it clearly served an important purpose for the community that created it, whether for storage, refuge, or ritual use.