Lots for Sale in St. Marys, GA across from Cumberland Island. This Georgia Real Estate For Sale is a corner, cul-da-sac lot, approximately .31 Acres (13,363 sq. ft.) in St. Marys, GA – Cumberland Harbour, an exclusive residential neighborhood. Land lot for sale is located in St. Mary’s, Georgia near Cumberland Island an area well known for it’s quaint setting, history and conservation of Georgia’s national seashore. This Georgia Real Estate For Sale is located inside a neighborhood with Access to the Atlantic Ocean via the Intracoastal Waterway, Pt. Peter Creek, & The St. Marys River. Cumberland Harbour is a gated community with 24 hours security patrol, clubhouse, swimming pool, gym, tennis courts, boat docks and more. Property offered by Certified Real Estate at Internet Auction. Visit www.OnlineOnlyAuctions.com to Register & Bid Online today or call us at 800-711-9175 for more information.