Windmill Harbour Marina is a full-service marina situated on the Northwest coast of Hilton Head Island. What sets this marina apart from the rest is it’s lock system, making it almost completely flat and a beacon for security and protection. Windmill Harbour Marina is one of only three private locked harbors on the East Coast! When docking here you can tie up and never have to think about the security of your boat! The marina is also right on the ICW, so arriving and departing is a breeze!