Although barrier islands are found all over the world they are most prominent along the eastern seaboard of North America. Barrier islands are very dynamic and fragile, but they are extremely important to the ecosystem. Most importantly, they are designed to protect the mainland from hurricanes. Secondly, they often provide refuge for many unique wildlife. The Georgia Coast is very unique in that it has several barrier islands which have been preserved to protect Georgia’s rich history and the balance of our ecosystem.

(source)