Global Volcanism Program | Image GVP-09109
The center Laguna de Bay in the center of the NASA Space Shuttle image (N is to the upper right) is Laguna Caldera. The lake surface is only 1 m above sea level and may have formed during at least two major explosive eruptions about 1 million and 27,000-29,000 years ago. The city of Manila lies along Manila Bay at the top center, and the large caldera at the lower left is Taal. To the right is the Pacific Ocean.
NASA Space Shuttle image, 1992 (http://eol.jsc.nasa.gov/).
This image is made available as a Public Domain Work, but proper attribution is appreciated.