Cockatoo Island dockyard in Sydney Harbour was of a significant strategic importance during WWII. As one of the main repair facilities in the Pacific for vessels damaged in the naval battles of 1942 it was critical to protect it from possible air attacks. Therefore, several projects were undertaken and included building of the tunnel through the island rocks, the first aid station, search light and a number of concrete air raid shelters. Even though impressive by the appearance I wonder how good those wooden doors were as a protection against an explosion shockwave. If I remember correctly, the good design of such a shelter should include a barrier against an explosion with the entrances usually placed on its sides. Anyway, the shelter was luckily never tested as there were no air raids on the Sydney Harbour as far as I know.
The sunset HDR was made out of the 3 standard exposures -2,0,+2EV. I set up a tripod low on the concrete path and was lying on the ground looking on the camera`s LCD screen. The tourists were passing by with their shadows moving along the shelter walls. That gave me an idea and I asked my wife if she would not mind to be a part of the composition. A bit of work on tone-mapping, contrast, desaturation, sharpening and here comes the picture of Cockatoo Island Air Raid Shelter.