Java Sea

The Java Sea extends between the northern coast of Java and southern Borneo. Its shallow waters contain islands and reefs, and connect westward to the Sunda Strait and eastward to the seas around Sulawesi. On the Javanese shore, Surabaya stands near the mouth of the Brantas river system. Monsoon winds change with the seasons, influencing movement across the sea between the ports and islands of the archipelago.