Surveillance Australia Pty Ltd is an Australian aviation company. It is primarily engaged in servicing the Australian Border Force Coastwatch contract, flying surveillance patrols within the Australian Exclusive Economic Zone (AEEZ).

The Laser Airborne Depth Sounder (LADS) Flight was a unit of the Royal Australian Navy. Unlike the rest of the flying units of the RAN, it was not controlled by the Fleet Air Arm from HMAS Albatross, but instead fell under the operational control of the Australian Hydrographic Service at HMAS Cairns, providing a platform for the operation of the laser airborne depth sounder system. LADS Flight conducted its last sortie on 7 November 2019.