Lake Sampaloc is one of seven interconnected crater lakes in the Province of Laguna, only 70 kilometres southeast of Metro Manila. Lake Sampaloc is the biggest and the most famous of the seven lakes, located in the heart of San Pablo City known as “City of Seven Lakes” - Bunot, Palakpakin, Mohicap, Yambo, Pandin, Calibato and Sampaloc. These lakes are an important resting ground for migratory birds from the north (China and Japan), e. g. White Egrets.
The seven lakes are rather small: Sampaloc (1.04 sq. km), Palakpakin (0.43 sq. km), Calibato (0.42 sq. km), Bunot (0.35 sq. km), Yambo (0.28 sq. km), Pandin (0.20 sq. km) and Mohicap (0.14 sq. km).
Lake Sampaloc has for many generations provided food and livelihood, leisure and respite for the citizens of the city. Its maximum depth measures 27 metres, the average depth is 20 m. Its width is 1.2 km.