Laguna Caldera is a potentially active volcano and a geographical depression in Rizal, Philippines. It is broadly elliptical in shape, with dimensions of 20 by 10 km. It has a summit elevation of 743 m or 2,438 feet. The caldera forms the middle lobe of Laguna de Bay, bound by the Morong Peninsula and Talim Island to the west, and the Jalajala Peninsula to the east.