* *Vieques*: located about 11 miles east of the Puerto Rican mainland, accessible by boat or plane
* *Culebra*: located about 17 miles east of the Puerto Rican mainland, accessible by boat or plane
* *Mona Island*: located about 45 miles west of the Puerto Rican mainland, accessible by boat
* *Isla de Cabras*: located at the entrance of San Juan Bay, accessible by boat
* *Isla Verde*: located just north of San Juan, accessible by bridge
* *Cayo Icacos*: located northeast of Fajardo, accessible by boat
* *Cayo Lobos*: located off the western coast of Puerto Rico, accessible by boat
* *Cayo Ratones*: located off the southern coast of Puerto Rico, accessible by boat