Melena del Sur is a town and a municipality located south of the Mayabeque Province, in Cuba. Bordered on the north and northwest by San José de las Lajas, on the east by the municipality of Güines, and west by Batabanó and by the south by the Gulf of Batabanó. In the south shore is located the only beach in the town, Mayabeque Beach. In this beach is the old outlet of the Mayabeque River (called Antiguo Mayabeque).