The Downtown Marina of Beaufort is located on the Intracoastal Waterway in the heart of one of South Carolina 's oldest and most beautiful cities. The Downtown Marina of Beaufort is your headquarters for Sperry Top-Siders and Costa Del Mar sunglasses. We also carry Hook & Tack apparel, a large selection of local charts, palmetto gift items, tide clocks and tour tickets. Dockside we offer short and long term dockage, gasoline and diesel. Known as your downtown convenience store, we're open everyday.