Montrouis is a coastal communal section in Haiti, located in the department of Artibonite, south of Saint-Marc. Montrouis is one of the most important beach tourism destinations in Haiti, with several well renowned hotels and resorts, including the Moulin-sur-Mer. The town is located on the Côtes-des-Arcadins, one of Haiti's longest stretches of pure white sand beaches. It is also an exceptional place for sailing and fishing.