The political and administrative division of Costa Rica is defined by provinces as follows : San José, Alajuela, Cartago, Heredia, Guanacaste, Puntarenas and Limon. These provinces, at the same time are divided into cantons and districts. In the administrative aspect, the province of Puntarenas has the following cantons : Puntarenas, Esparza, Buenos Aires, Montes de Oro, Osa, Aguirre, Golfito, Coto Brus,
