Map of Pulau Ubin, Pulau Serangoon, Serangoon Harbour and Pulau Ketam in Singapore

This area shows the Serangoon Habour, which is a body of water, in the Straits of Johor, demarcated by Pulau Ubin to the northeast, the mouth of the Sungei Serangoon river to the southeast, and Pasir Ris coast to the south.

Near the mouth of the Sungei Serangoon is the islet of Pulau Serangoon. At the right side of the map lies Pulau Ketam, an islet off the southern coast of Pulau Ubin.