The region is composed of five provinces, namely: Cavite, Laguna, Batangas, Rizal, and Quezon; acronym CALABARZON.

Laguna de Bay
Laguna Islands Philippines

Laguna de Bay is about 90,000-hectare shallow lake with 220-km shoreline that borders Metropolitan Manila on the northwest and the provinces of Rizal and Laguna on its western, central and eastern bays. Laguna Lake basin has an approximate area of 380,000 hectares broken down into 290,000 hectares of land and 90,000 hectares of lake proper.

Twenty-one tributaries flow into it. 27 towns and 117 barangays surround it. The population in the basin area, including Metro Manila, is about 10 million. Any development in the basin, be it land or water-related, would certainly affect the lake proper through its tributaries.

Cavite, Tagaytay, Laguna, Batangas, Rizal, and Quezon - CALABARZON - CALABARZON Advertising

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