Central Luzon (Region III) is located north of Metro Manila on the main island of Luzon. It includes the provinces of Aurora, Bataan, Bulacan, Nueva Ecija, Pampanga, Tarlac and Zambales. Towering mountains, volcanos, lush farmlands, natural sea harbors and more can be found here.
The Cagayan Valley (Region II) is made up of the provinces of Cagayan, Isabela, Nueva Vizcaya, Quirino, and the Batanes group of islands. It is bordered to the west by the Cordillera mountain range, to the east by the Sierra Madre, to the south by the Caraballo Mountains, and to the north by the Luzon Strait. The main cities in this region are Cauayan, Ilagan, Santiago, and Tuguegaro.
Ilocos (Region I) lies on the northwestern section of Luzon. It also straddles part of the Central Luzon plain, primarily in Pangasinan province. It is bordered by the Cordillera Administrative Region to the east, the Cagayan Valley to the northeast and southeast, and the Central Luzon to the south. To the west lies the South China Sea. The region is made up of four provinces (Ilocos Norte, Ilocos Sur, La Union and Pangasinan) and one independent city, Dagupan.
The Philippines is comprised of over 7,500 islands
The three main geographical areas are Luzon, Visayas and Mindanao. The Luzon area includes the largest island Luzon and other islands in the northern part of the country. The Visayas are in the middle of the country while Mindanao includes the second largest island, Mindanao and surrounding islands. Each area is made up of several official regions which are listed below. Each region in turn comprises several provinces. Details on each of the Philippine regions can be found here.
