The fortifications began in the 19th Century and were modified over the years and include a series of tunnels that connect the entire area. Fascinating but scary to think that we needed such protection.
The guns have been removed but you get the idea. There was no way anyone would get through Sydney Harbour. As the Japanese were to find out in 1942 during WWII.
We parked the car in a free 2 hour spot at Georges Head, which is just above Chowder Bay On Middle Head Road, Mosman. Then followed the signs to Middle Head. Some parts aren't as well signed so you'll have to follow the map, one wrong turn and you could end up at the Nudist Beach!
You will walk through the abandoned military quarters and come to this little group of cottages on Old Fort Road. Keep walking straight ahead veering left of the main house. This takes you to the Outer Forts.
Then we hiked up t…