mk,
I was just in St. Maarteen a few weeks ago, didn't do the 4X4 Safari thing, we only went shopping.....lol, and also went to Everything Cool, local bar, right on the beach, located in the middle of the town!! Found some awesome prices on jewerly, I got a 2k diamond tennis bracelet at Kay's Fine Jewerly for only 299.00 tax free.
Enjoy your trip. Also the Glory is a beautiful Ship, you will enjoy her.