http://news.bbc.co.uk/1/hi/wales/south_west/6356757.stm
Apparently there are some steel posts sticking out of the sand in the middle of the beach that weren't exposed before. Notice is aimed at surfers but ribbers also beware.
I got excited for a minute when I read about the exposed wreck - until I saw it said "steel posts". A few Spanish treasure ships have sunk in the bay and on the aptly named Spaniard rocks. Some of the cannons are in a garden in the village and you still get gold doubloons and silver dollars(pieces of eight) washed up from time to time.