Sisters' Islands

Sisters' Islands are two of the Southern Islands in Singapore and are located to the south of the main island of Singapore, off the Straits of Singapore. It can be reached via a boat ride from Marina South Pier or West Coast Pier.

Big Sister's Island, about 39,000 m2 in area and also known as Pulau Subar Laut in Malay, faces the open sea, while Little Sister's Island, about 17,000 m2 in area and also known as Pulau Subar Darat in Malay, faces the mainland. The two islands are separated by a narrow channel. Currents through this channel can be very dangerous to swimmers and divers.

Source: Wikipedia