Day trips on a boat

We will be back to St Maarten in March this year with another couple. Usually do Random Wind sail but would like to try something different. Plus, I think she sold it (again), so not sure it is in service now anyway. Any ideas for a nice day on the water with a little snorkeling and good food?

maybe try this:
http://www.soualigadestinations.com/soualiga_destinations/Welcome.html

(as far as I know, Diane is still doing Random Wind)
If you go to the SXM people talk, you will see that there is a group going on the Passat on March 4th...and a link to the Passat's site