History of Coastal Georgia Friday, Nov 16, 2012 12 PM This event has already occurred.   (Archived) Learn about the formation and history of Georgia’s barrier island system. Did you know our coast is actually made up of two distinctly different sets of islands? $5 parking. 912-598-2300. Location: Skidaway Island State Park 52 Diamond Cswy Savannah, GA 31411 Directions: GPS Coordinates: N 31.942400 | W -081.052333 Located 15 miles southeast of Savannah on Diamond Causeway. From North of Savannah via I-95 South From North of Savannah via US-17 South From South of Savannah via I-95 North From West of Savannah via I-16 East Skidaway Island State Park 52 Diamond Cswy Savannah, GA 31411