I second the 12 metre regatta. Highly.. BUT I had great fun stumbling on to activities.. I found this site at the last minute, which led me to A Pan Revolution 8 and I Love My Ram... 2 local events that happened to be happening: This site is not comprehensive, and doesn't give enough info.. but it's a start and served me well. http://www.stmartinisland.org/st-martin-events/one-year-in-st-martin.html#sep