Maybe the wreck of the French cruise ship "Antilles", which got pinned on an underwater reef off Mustique Island on 8 January 1971?
The ship caught fire after the reef ruptured the fuel tanks, and the 690 passengers and crew were ordered to the lifeboats and evacuated. Most of them were picked up by QE2 which was cruising in the area.
10 days after the grounding, the wreck broke in three sections, then slowly collapsed and disappeared through the years.