Customs & immigration
U.S. citizen and some members of the E.C.: Austria, Belgium, Denmark, Finland, Germany, Greece, Ireland, Italy, Netherlands, Norway, Portugal, Spain, Sweden and the United Kingdom do not need a visa.
Other nationalities please check website: Saint Martin entry requirements

Time zone:
5 hours in winter - 6 hours in summer (East coast of the United States)

Currency:
Euro on the French side and U.S dollars on the Dutch side. However, the USD is widely accepted on the French side and most bars/restaurants will accept 1 euro/1 dollar for drinks at the bar as well as beach chairs and umbrellas.

Health:
No immunization required. There is a hospital in both Saint Martin & Sint Marteen.

Language:
French is the official language on the French side but English is spoken everywhere.

Electricity & water:
220 Volts. Tap water is drinkable.

Airport information:
Sint Maarten / Saint Martin Airport site

FAQ
You can find some information on Saint Martin on this site: Saint Martin Tourist Office