1.    There are three light buoys moored South-East of Prongs Lighthouse, one flashing a green light every five seconds, the other group (2) flashing red light every 10 seconds and the third flashing red every 5 seconds. Prongs reef buoy is fitted with a radar reflector.

2.    There are other important subsidiary light including the Dolphin Rock Light and Tucker Beacon Light.

3.    4 nos. Lighted floating buoys to mark the approach channel, 2 jetty end beacons at mooring dolphins 1 and 4 and 2 leading lights have been provided for night navigation. In addition the Elephanta patch beacon has been upgraded to improve its range.