Residents of EU countries need only a national identity card to enter St-Barth. Passports are needed for all other nationalities, and must be valid for six months or more after your arrival date.
St-Barth is duty-free. You're allowed to bring items intended for personal (but not commercial) use. Coral and turtle-shell items are illegal and not permitted to be taken off the island.
Citizens from the US, UK, Canada, Australia, Japan and New Zealand don’t need visas. Citizens of several Commonwealth of Independent States (CIS), African and South American countries require visas valid for a French collectivity (French: collectivité d'outre-mer; COM). Visit www.diplomatie.gouv.fr for more information.