St. Martin's Dutch side is known for its festive nightlife, beaches, jewelry, exotic drinks made with native rum-based guavaberry liquors, and plentiful casinos. The island's French side is known for its nude beaches, clothes, shopping (including outdoor markets), and rich French and Indian Caribbean cuisine. English is the most commonly spoken language along with a local dialect. The official languages are French for Saint Martin, and both Dutch and English for Sint Maarten. Other common languages include various French-based creoles (spoken by immigrants from other French Caribbean islands), Spanish (spoken by immigrants from the Dominican Republic and various South American countries), and Papiamento (spoken by immigrants from Aruba, Bonaire and Curaçao).

The island is home to accommodations including hotels, villas, and timeshares, many of which are privately available for rent or sale.