The Royal Australian Navy used the Melbourne Boy's High School, in Melbourne, Victoria from 1942 to 1944. This included the Pay and Personal section, DOTM, and other such Navy departments.

There have been stories that the Melbourne' Boy's High School was used by the US Army during WW2. This is not true. The Headquarters for the U.S. Army Forces in Australia, were initially located in the MacRobertson Girls High School and perhaps this is where the confused story has arisen.

There have been unsubstantiated reports of a tunnel from the Melbourne Boy's High School to nearby South Yarra Railway Station. It is rumoured that this tunnel was apparently used to store arms during WW2. It is also rumoured that it was still used for this purpose after the war by the school cadets. In mid 2004, some of the buildings between the school and the railway station were being excavated without any sign of a tunnel. It is believed that there was no such tunnel between the school and the railway station.

However there is a large steel door in the army cadet room which is welded shut. It is supposedly an entrance to an escape tunnel that was used during WW2. Apparently any student found to have entered this tunnel will be automatically expelled. The tunnel under the school is apparently still there, however as indicated it is now blocked. There have been unsubstantiated reports of a trap door in the Principle's office that leads to the tunnel.

In December 2002 Michael Bukraba indicated that he had found some interesting looking brickwork that seems to have been recently repaired or replaced inside the Anzac Tunnel. He indicated that the Anzac Tunnel is littered with lots of graffiti. He said he could see an overhead chunk of brickwork that had begun to collapse. It was located about 200 paces in along the Anzac Tunnel. He indicated that when he paced it out, this brickwork seemed to line up with an area under the school, possibly the School Library building but he was not sure. The Anzac Tunnel construction turns from brick to concrete about 250m along the tunnel.

There are reports that there used to be a large underground "bunker" near Dights Falls at Abbotsford, in Melbourne, Victoria. It is believed that this large underground "bunker" was an old WW2 air raid shelter. It is estimated that it could hold a few thousand people.

It is reported that there was apparently a boat moored near Swanston Street on the Yarra River during WW2, and in the event of an air raid, the occupants of the War Room at Victoria Barracks would be whisked away up the Yarra to this "bunker".

It is reported to be similar to the underground "bunker" under Spencer Street Railway Station in the Melbourne CBD.

A team in Melbourne led by Mark Rawson is excavating a tunnel at Northcote in Merri Creek which was used by the military during WW2. The tunnel was sealed and filled in after the war with dirt and rock. During WW2 a sentry was posted on the Merri Creek entrance to the tunnel.

It has been reported that there was apparently a boat moored near Swanston Street on the Yarra River during WW2, and in the event of an air raid, the occupants of the War Room at Victoria Barracks would be whisked away up the Yarra to a large bunker at Dights Falls at Abbotsford. This is not far from the Merri Creek tunnel. Could there be some connection between the two locations?