Charleston Harbor is a natural harbor located in Charleston, South Carolina. It serves as an important port for shipping and trade, connecting the city to the Atlantic Ocean. The harbor is known for its deep waters, which accommodate large vessels, and its strategic location has made it a significant site throughout American history. The harbor is surrounded by several notable landmarks, including Fort Sumter, where the first shots of the American Civil War were fired. Additionally, the Cooper River and Ashley River flow into the harbor, contributing to its rich ecosystem and providing recreational opportunities for boating and fishing.