The entrance is situated about 65 metres above the resurgence of the Bishopston Stream.
Description
The cave can be explored for about 15 metres until the roof meets the water. A vertical squeeze then leads to a continuation of the passage which appears to sump after 10 metres. A small hole on the left just inside the entrance leads via a long squeeze to a bedding plane where water is met again. Another squeeze on the left goes for about 10 metres.
History
Hydrology
Water traced from Barlands Quarry Sink
Conservation
SSSI: 1036 Pwll-du Head and Bishopston Valley (Mixed/M)