Skidaway Island is an interior Atlantic Ocean island located slightly southeast of Savannah, Georgia between the Wilmington, Skidaway and Vernon Rivers.

The barrier island is fronted by Wassaw Island, and is home to Skidaway Island State Park, the world-renowned Skidaway Institute of Oceanography and the University of Georgia's Marine Extension Center, and the largest coastal residential development in the Savannah area called The Landings. Though extensively developed by the Union Camp Corporation, the island today has one of the best state parks in Georgia, with two breathtakingly beautiful nature trails and a full complement of facilities. The Marine Extension Center has the best aquariums in the Savannah area and an excellent nature trail that follows Skidaway Narrows. 

Reference: http://www.sherpaguides.com/georgia/coast/northern_coast/skidaway_island.html