“...that whole coast range was a target of Jap Balloon bombs back in the WW II ...”
Also a Jap sub fired on Battery Russell during WWII:
https://beachconnection.net/news/battruss061912_510.php
Don’t forget the Lookout Air Raids...
https://en.wikipedia.org/wiki/Lookout_Air_Raids
(one of the bombs dropped was never found and is still out there)
🐷