I just came back from a Carnival cruise that included Grand Turk Island. I was surprised to see the poverty, but I guess they sit in hurricane alley. The island's only export was sea salt but that ended in the 1960s. The salt beds are still there today. Cruise ships seem to be the only source of income. Gas is $5.20/gal. Unfortunately, I can not answer your question, but I did not see any signs that said you could not metal detect. Carnival cruise lines prohibit bringing metal detectors aboard ship, so I did not get to do any hunting while on my cruise. At Grand Turk, it is believed that Columbus landed here on one of his 4 trips to the new world, and that the Pinta sank here. A ship was discovered on the plateau that surrounds the island, and it was dated around the early 1500s but while two groups were squabbling over who had the rights to salvage the wreck, someone else (allegedly) came in under cover of darkness and plundered the wreck, and now they can not conclusively document that it was actually the Pinta. The museum in downtown on front street and was very fascinating and well worth the $5 admission fee, quite contrary to the appearance from the outside. Attached is a sign at a local beach. If I were going to hunt I would go to the cruise ship beach. HH