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, Laguna ', (pronounced as "Ba-eh"), officially the ', (), is a in the province of , . According to the , it has a population of people. It is located at the east of Los Baños, west of Calauan, northeast of Santo Tomas and northwest of Alaminos. The Patron of Bay is Saint Augustine of Hippo celebrating his Feast Day during August 28. Laguna de Bay, the country's largest freshwater lake, is named after the town. Just like the rest of the archipelago, the town of Bay has no record before the coming of Spaniards in the 18th century.