Just got back from Grand Turk, diving was excellent as always. While not swanky like Providenciales, its my favorite place in the Caribbean. (Full disclosure I own a house there). 5min boat rides, surface intervals on the beach. We actually made a trip out to dive the Endymion (44 gun warship that sank in 1780) and it was an all time dive for me. While obviously the liveaboards are great out of provo, I don't understand why anyone wanting to dive would put up with the 45min boat rides every day when you can dive GT. Anyways, if you have any questions, feel free to contact me.