1.Sampaloc Lake is an inactive volcanic maar on the island of luzon, the philippines. It is the largest of the Seven Lakes of San Pablo, Laguna. Nearly half of the lake's dept has a shallow depression at the bottom, indicating its volcanic origin. It is approximately 104 hectares and 3.5 killometer boardwalk. The lake is behind San Pablo City Capitol and at the foot of the Doña Leonila park​