Cannon's Picnic area can be found to the left of Bradleys Head Road when you turn into Bradleys Head lookout. From a historical perspective it would be interesting for residents, visitors and families to have a look.
A Cannon Battery runs along the top of the picnic area, this was built in 1871 along with a Rifle wall to strengthen the defences that were installed on Bradleys Head. Within the wall sat two 360 pound cannons one of which was moved down on to the picnic area which sits on top of a replica wooden slide. There is an inscription near the Cannon which says VR1871 which signifies the date of installation and the name of the ruling monarch at the time who was Victoria Regina.
Both the Cannons and the Rifle wall were installed in response to the departure of British Garrison troops from the Colony as NSW has to rely on their own muscle for defence.
The picnic area itself is a little bushy and for families its fun for older children to run around in the tunnels around the fortification though you would have to keep a close eye on younger children as the cavities of the tunnels are steep drops. There is not enough information such as the above around the are so a little research on the following website maybe useful should you be interested in finding out more information. http://www.environment.nsw.gov.au read more