The original question had to do with the passport having to be valid more than six months after your trip. I THINK that I read that if you arrive into St. Martin or St. Barts, that the passport has to be valid 6 months past your trip. My point was that it's been established that if you fly into the Dutch side, and you never leave the island, you don't have to worry about the six month issue. However, if you leave the island, then there could be an issue, either on the island you go to, or if you come back into the French side.