CALABARZON is one of the regions of the Philippines. It is also designated as Region IV-A and its regional center is Calamba City in Laguna. The region is composed of five provinces, namely: CAvite, LAguna, BAtangas, Rizal, and QueZON; the region's name is formed from the names of these provinces.The region is located in southwestern Luzon, just south and east of Metro Manila and is the second most densely populated region.

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