Manatí is a city and municipality of Puerto Rico on the northern coast. It is north of Morovis and Ciales, east of Florida and Barceloneta, and we…Manatí is a city and municipality of Puerto Rico on the northern coast. It is north of Morovis and Ciales, east of Florida and Barceloneta, and west of Vega Baja. Manatí is has over 8 barrios and Manatí barrio-pueblo, the downtown area and the administrative center of the city. It is part of the San Juan-Caguas-Guaynabo Metropolitan Statistical Area.