This cave is 'orrible! Accessed via a Welsh Water adit, some 1.77 km inside, the cave consists mainly of short sections of walking sized passages connected by long muddy crawls, and a very long, muddy, traverse. In the main direction, the cave introduces itself with a neck deep duck. The further reaches contain a significant stream and have more walking passages and relatively large chambers. There are very few formations throughout the cave. Access is controlled by Brynmawr Caving Club.