Laguna (province) producing of fish. Carp and tilapia fingerlings are also being grown in inland ponds and freshwater fish pens. There are a total of 457 operators utilizing an area of for fish pens and fish cages. Aside from the Laguna de Bay, approximately 12% of the area in the Seven Lakes of San Pablo is being used for aquaculture. Laguna is home to twenty-one economic zones as registered under the Philippine Economic Zone Authority. Most of these economic zones are located in Santa Rosa, Biñan, and Calamba. The largest economic zone in Laguna is the Laguna Technopark, located in Santa Rosa
Laguna de Leche in 1940 (Chicola Channel) connected the lake to the Bay of Buena Vista, allowing for the sugar processed in Morón to reach the small port of Chicola. In the process, the lake was contaminated with sea water, and it lost its characteristic white color. The channel was closed in 1988, and the milky color gradually recovered. The Caribbean flamingo finds a natural habitat in the lake and its islands Laguna de Leche Laguna de Leche (Spanish for "Milk Lagoon", also called "Laguna Grande de Morón") is the largest natural fresh water lake in Cuba. It is located in the wetland