The snorkeling on St. John is much better than in SXM. Can't really comment on Jost since we only day-tripped. Just a personal opinion but I think the beach bars are much better on SXM. But still wet and cold and good.

And what a great reason to visit - I hope you have an awesome good time. <img src="http://www.traveltalkonline.com/forums/images/graemlins/handshake.gif" alt="" /> <img src="http://www.traveltalkonline.com/forums/images/graemlins/handshake.gif" alt="" />