Fort National is a historic fortress located on a small island off the coast of Saint-Malo, France. Built in the late 17th century by the military engineer Vauban, it was designed to protect the city from naval attacks. The fort features thick stone walls and a strategic position overlooking the sea, making it an important defensive structure during its time. Today, Fort National is a popular tourist attraction, accessible during low tide. Visitors can explore its well-preserved architecture and enjoy panoramic views of the surrounding coastline. The fort serves as a reminder of Saint-Malo's rich maritime history and military significance.