Metro Manila is situated on an isthmus bounded by Manila Bay to the west and Laguna de Bay to the south-east and divided by Pasig River that links the two bodies of water. The city lies on a wide flood plain that is one of the biggest in the country. The area is bounded by Bulacan to the north, Rizal to the east, Laguna to the south and Cavite to the southwest.
Metro Manila is the general term for the metropolitan area that contains the city of Manila, as well as sixteen surrounding cities and municipalities. The name “Metro Manila” came about and was generally adapted in the 1980s as previously, cities which are now part of the MM area were part of the neighbouring provinces. Metro Manila is the political, economic, social, and cultural center of the Philippines, and is one of the more modern metropolises in Southeast Asia. It is much more economically developed compared to the other major cities in the country. Among locals, particularly those from central Manila and those in the surrounding provinces, Metro Manila is often simply referred to as Manila; however locals from other parts of the metropolis may see this as offensive, owing to city pride and also the fact that some cities are actually geographically closer to the neighboring provinces than to Manila itself. Metro Manila is often abbreviated as M.M.. The Metropolitan Manila Develop