Geograph - photograph every grid square

From Coflein (Royal Commission on ancient and historical monuments of Wales)

"A'V'-shaped stone-built fish trap, springing from coastal rocks on [the bay's] south side. It measures approximately 34m from base to apex, with equally-spaced arms measuring 40m long and up to 9m broad. It is built from large boulders, now partly dispersed with a few smaller stones visible in the matrix. The trap is only exposed at the lowest tides, of 0.5m and under. It is likely that a build-up of sand behind (to the west, beach-side of) the trap may have obscured further parts making it considerably larger. Because of the present sea-level it would be difficult to regularly use and make repairs to this fish trap, and this might indicate a construction date back in the Middle Ages, or earlier. This trap is not mapped on any sea-charts or historic maps, unlike its counterpart on the north-west side of Fishguard Harbour. The site was discovered and photographed through shallow water during Royal Commission aerial reconnaissance."