Chain of about 600 islands and islets, southeastern Lesser West Indies .
The islands span over 60 mi (100 km) at the eastern end of the Caribbean Sea. The northern Grenadines are administratively part of Saint Vincent and the Grenadines , while the southern islands are a dependency of Grenada . The Saint Vincent group consists of Bequia, Canouan, Mayreau, Mustique, Union Island, and associated islets. Carriacou Island, the largest of the Grenada group, has an area of 13 sq mi (34 sq km). Rainfall is low, and few of the islands are inhabited.