North Carolina Ferry System: Hatteras, Ocracoke North, Cherry Branch and 10 other ports. Mobile Bay Ferry: Dauphin Island and Fort Morgan. Lowcountry Ferry: Hilton Head Island and Daufuskie Island. Key West Express: Fort Myers Beach and Key West. Savannah Riverboat Cruises: Savannah and Old Fort Jackson. Fort Sumter Tours: Charleston, Fort Sumter and Patriots Point. Yankee Freedom: Key West and Dry Tortugas. Baleària Caribbean: from Freeport and Bimini. And six other companies.