Anguilla is close enough to St. Martin for a real day trip, but it is still an international crossing. You need your passport, enough time for immigration on both sides, and a clear plan for the last return ferry. Done well, the day is simple: take the early public ferry from Marigot, spend most of the day on one or two beaches, eat a proper lunch, and return before the terminal gets rushed.

Good to know
Public ferry fares: $30 USD per adult one way, $15 USD for children ages 2 to 11, infants under 2 travel free. The Marigot exit fee is EUR 7 for travelers over 4. Adult visitors returning from Anguilla to the French side should budget $28 USD in Anguilla departure fees.

What you need to know before you go