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
San Cristóbal de La Laguna where the town was called "Aguere" by the aboriginal Guanches (the name is still used in the literature). Later he founded the city as "Villa de San Cristóbal de La Gran Laguna" (in memory of a pond or lake that was in place). Later he established the San Cristóbal de La Laguna, and today is known simply as "La Laguna" (the lake). The coat of arms was granted by Queen Joanna of Castile on 23 March 1510, as arms of the island of Tenerife. The town of La Laguna, being the capital of the island during the first times after