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 (province) is composed of over 200 dormant and monogenetic maars, crater lakes, scoria cones and stratovolcanoes, the tallest of which is Mount Makiling at in elevation. San Pablo itself is known for its seven crater lakes, the largest of which is Lake Sampaloc. Apart from the Laguna de Bay and the Seven Lakes of San Pablo, there are also two reservoir lakes that can be found in Laguna, the Lake Caliraya and Lumot Lake. These two man-made lakes were formed by the creation of the Caliraya Dam and the Lumot Dam. Due to its proximity to Laguna de Bay, Laguna is