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 was derived from Datu Pangil's three daughters. After they were baptized, they were named Maria Basilisa, Maria Angela, and Maria Elena. The first letters of Basilisa, Angela, Elena were taken together and read "Bae". Over a period of time, "Bae" became "Bay". The powerful Gat Pangil was Datu of this already thriving community in 1571 when 18-year-old Spanish Capitan Juan de Salcedo landed with Augustinian missionaries Alfonso de Alvarado and Diego Espinar came to claim the territories for Spain. It was salcedo who took the name of the town and named the lake after it – Laguna de Bay (the