The sands were treacherous to sailing ships and a number of vessels were certainly lost around Pembrey, including "La Jeune Emma" bound from the West Indies to France and blown badly off course in 1828. 13 of the 19 on board drowned, including Adeline Coquelin, the 12-year-old niece of Napoleon Bonaparte's divorced wife Josephine de Beauharnais. She is buried at St. Illtyds Church, Pembrey. The last large ship to be lost was the four masted windjammer, the SV Paul, carrying a cargo of timber and grounding in a storm in 1925. Today Cefn Sidan forms part of the Pembrey Country Park leisure and nature complex.