Do you need a passport to travel to Anguilla or is your birth certificate w/ license enough?
You do if you are taking the ferry from Marigot. The French require one to come back, and may not let you on the ferry without one.
New regulations are in place - you may want to check out the following site: travel.state.gov/travel/cbpmc/cbpmc_2223.html
If you are traveling from St Martin - you don't need one to get into Anguilla, but you will definitely need it on your return trip to Marigot.
Provided by: Vacation St. Maarten