Jurong Island is a man-made island located to the southwest of the main island of Singapore, off Jurong Industrial Estate. It was formed from the amalgamation of several offshore islands, chiefly the seven main islands of Pulau Ayer Chawan, Pulau Ayer Merbau, Pulau Merlimau, Pulau Pesek, Pulau Pesek Kecil, Pulau Sakra and Pulau Seraya.