Newhaven Fort is a historic coastal fortification located in Newhaven, East Sussex, England. Built between 1860 and 1871, it was designed to protect the Port of Newhaven and the surrounding area from potential naval attacks. The fort features thick walls, gun emplacements, and a series of underground tunnels. Today, Newhaven Fort serves as a museum and visitor attraction, showcasing its military history and the role it played during various conflicts, including both World Wars. Visitors can explore the fort's exhibits, enjoy panoramic views of the English Channel, and learn about the area's maritime heritage.