We did the semi-submersible excursion that also stops in Marigot for about 50 minutes. I wish we had more time there---it was a nice town. It even has a modern indoor mall! We did get a bit amused though when I asked directions to the post office. First we were told to go down the street, then right, then left. After doing that, we asked someone else---they told us to go down the street, then right, then left. After doing that, we asked another person and again were told go down the street, turn rigth, then left. We finally found it.