Vieux Port, or the Old Port, is the main harbor of Cannes. It is a bustling area with yachts, fishing boats, and waterfront restaurants. Visitors can take a leisurely stroll along the promenade, watch the boats come and go, or enjoy a seafood meal at one of the many restaurants. Vieux Port is also a popular spot for boat tours and water activities, offering a chance to explore the stunning coastline and nearby islands.