The water resurges from a small sumped passage. Diving has shown no obvious way on, but possible promise if the level of water could be lowered.
History
Hydrology
It has a reasonably high flow rate of 1120 gallons a minute (.085 cumec). It's known sinks are Llwyn-y-Bwch Swallet, Freedown (Stonyford?) and possibly Cefn Bryn.
Conservation
Gallery
Brendan Marris 2018
Survey
References
SWCC Newsletter 59
CDG nl.22 (1972)
Cave Science 10(4) pp.188-198, 1983, W.J.Chambers, Intensive sampling at a karst spring system: Leason, Gower, South Wales