Puntarenas is in the western part of the country, covering most of Costa Rica's Pacific Ocean coast, and is the largest province of Costa Rica. It is the province with more islands: Chira, Bejuco, Caballo, Venado, Cedros, Cuchillos, Negritos, San Lucas, Herradura, Violín, Isla del Caño and the Coco Island. The province has an area of .