Felicity - Glory Annen (1978) - Cheung Sha Wan Beach, Lantau Island

In the last part of the film, Felicity is reunited with her beau on a deserted beach somewhere. Part of this scene was filmed in Hong Kong and I can only assume the shots involving the small brown hut he is staying in were shot back in Australia because the background terrain is too flat to be Hong Kong. So the first two images below show the Cheung Sha beach shot portion and the latter image shows what I am guessing is somewhere in Australia - the fact that the two of them go frolicking butt naked in the sea may have been the reason these later shots were done outside of Hong Kong (nudity is not allowed on Hong Kong beaches).

Above: Cheung Sha beach with Sha Tsui in the background 

Not Hong Kong (most likely Australia given the origin of the film)