Petit Bé is a small, rocky islet located off the coast of Saint-Malo, a historic city in Brittany, France. It is part of the Rance estuary and is known for its picturesque views and natural beauty. The islet is accessible during low tide, allowing visitors to walk across the sand to explore its unique landscape. The islet is home to a 17th-century fort, also named Petit Bé, which was built to protect the city from naval attacks. This fort played a significant role in the defense of Saint-Malo and is now a popular site for tourists interested in history and coastal scenery.