Various: For the past 16 years a rocky alcove on the shores of Stroma, one of the Orkney islands off the north coast of Scotland, has been the final resting place of the Bettina Danica, a 70-metre cargo vessel that ran aground in February 1993. All six crew were saved, but tugboats were unable to pull her back out to sea. After several attempts, they gave up. Today all that is left is a rusting, crumpled hull, visible from passing ferries. It is not the only ship to meet such a fate. The …