In the northwest of Java, Indonesia, there is a port city called Jakarta. It is the capital of Indonesia and the most populous city in the world, with over 30 million people. The city is located on the northwest coast of Java at an elevation of just 6 meters (20 feet) above sea level.
But what about North Jakarta? How far below sea level is it?
North Jakarta is located on the northern coast of Java, just a few kilometers …