"The smallest island in the world ever to have been partitioned between two different nations, St. Martin/St. Maarten has been shared by the French and the Dutch in a spirit of neighborly cooperation and mutual friendship for almost 350 years.
The border is almost imperceptible. and people cross back and forth without ever realizing they are entering a new country. There are four boundaries, Belle Vue / Cole Bay, French Quarter / Dutch Quarter, Low Lands / Cupecoy and Oyster Pond, testifying to centuries of peaceful cohabitation and the treaty that made the arrangement possible.
All the same, each side has managed to retain much of the distinctiveness of its own national culture. The French tend to emphasize comfort and elegance. The beaches are secluded, the luxury resorts provide lavish accommodations, and the restaurants offer the finest dining experiences anywhere in the Caribbean. The latest French fashions can be found in many of the shops, and the smell of fresh croissants and pastries mixes everywhere with the spicy aromas of West Indian cooking. Small cafés and charming bistros add a decidedly Gaelic and cosmopolitan flair to the place. On the whole the atmosphere remains very relaxed.
On the other hand, St. Maarten with its busy cruise port and bustling commercial district, has long been an active center for trade and tourism. More developed and at the same time more informal, it is very Dutch in flavor and still has strong ties with fellow compatriots in the other Netherlands Antilles. Between the two different cultures in St. Martin and St. Maarten, vacationers will be able to find just about every kind of activity they might want for a perfect holiday in the sun.
Located midway through the chain of islands in the Caribbean, just as the Antilles begin to curve to the south, St. Martin is sunny and warm year-round, averaging 82 degrees Fahrenheit in summer and just 2 degrees cooler in winter. The island is buffeted by cooling trade winds that keep things temperate all year long. Average annual rainfall comes to about 45 inches, most of which occurs around late summer and early fall."
-Article from St. Maarten web site