We had a tour booked through Princess. It was a great tour, given by a local man named Tracey. The Island reminded me of Bonaire. They have the same Donkeys that roam the Island. On Grand Turk, the local people look after the donkeys, so they are very friendly. I even got to feed 4 of them, much to my great pleasure! I've read reviews of Grand Turk with people saying it was boring, but I did not find this true at all. In fact, I really enjoyed it.
I love to see what makes an Island tick. Princess Cays is actually on the Island of Eleuthera. It's an interesting place, and we enjoyed the tour we took, which showed us what the Island looks like and the guides told us about life for those that live there.