Expo Mangaratiba is the city's largest economic, cultural, and social event, held in November at the Exhibition Park. It brings together agriculture, livestock, commerce, gastronomy, music, and traditional caiçara culture. The program includes concerts with regional and national artists, a rodeo, auctions, cooking competitions, a craft fair, and a food court. It is a showcase for Mangaratiba's economic and cultural potential, attracting exhibitors and visitors from across the Costa Verde.