Duckbutt
Well done,
To expand on the analysis by Duckbutt, Roebuck bay which is the sea area I was describing was used for Sea Planes, a few destroyed during the bombing raids with some significant parts of the wreckage still visible at low tide. (Not sure if Paspaley Pearls still lands it's Sea Planes at Broome).
Broome also has a large Japanese population because of the Pearl Diving Industry.
Take it away (unless you want to declare OH).