Tales of Ships and Shipwrecks
The first recorded shipwreck in Jersey was probably caused in the middle of the 6th century AD by St Helier laying false lights in the hope of luring pagan seafarers (or pirates depending on your viewpoint) to a watery grave. The fact that he was not successful on at least one occasion explains how he came to be separated from his head.
However, that unknown vessel was simply one of many boats that went to the "great boatyard in the sky" because of the reefs and the rocky coastline of the island. Here are some stories of some others.