Whitlow reported peat and tree stumps at low tide line in the centre of the beach. Modern aerial photography shows a sandy expanse and so the exposure probably ocurs at time of exceptional draw down.

Source include:
Bell, M, 2007, Prehistoric Coastal Communities: The Mesolithic in Western Britain, CBA Research Report 149, pg2
Greenly, E, 1928, Some recent work on the submeregd forest in Anglesey, Proceedings of the Liverpool Geological Society, 15, 56-62
Gwynedd Archaeological Trust HER Ref: 16585
Hall, H F, 1866, Notice of submerged forests at Rhos, near Colwyn in Proceedings of Liverpool Geological Society, 7, 31
Smith, G, Davidson, A and Kennedy, J, 2002, North Wales Intertidal Peat Survey, report 450, Gwynedd Archaeological Trust

Maritime Officer, RCAHMW, January 2013.