The Lesser Antilles are a group of islands in the Caribbean Sea. They are distinguished from the large islands of the Greater Antilles to the west. They form an arc which begins east of Puerto Rico and swings south through the Leeward and Windward Islands almost to South America and then turns west along the Venezuelan coast as far as Aruba. Barbados is isolated about 100 miles east of the Windwards.

The Caribbean Sea is a sea of the Atlantic Ocean in the tropics of the Western Hemisphere. It is bounded by Mexico and Central America to the west and southwest, to the north by the Greater Antilles starting with Cuba, to the east by the Lesser Antilles, and to the south by the northern coast of South America. The Gulf of Mexico lies to the northwest.