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
Bay, Laguna Bay existed long before the coming of Spaniards. The Chinese must have come to the lakeshore towns to trade as early as the 9th century. The earliest account of Bay appeared in the conquest of island of Luzon published in April 20, 1572. It was described a great lake of fresh water, 12 league wide and very deep. The villages around the lake had about 25,000 inhabitants when Captain Juan de Salcedo arrived in the area. Bay is one of the oldest towns in Laguna province, and was the province's first capital. Its original territory covered the areas that are