My Dad was onboard.....
 

..somewhere...:DL

He was part of the RN 4th Submarine Squadron at HMAS Penguin at Mosman/Balmoral during the early to mid sixties, the period when the RAN was training up and developing it's own Submarine Squadron. We lived there for a couple of years, I went to school in Manly, across the bay.

A short clip but here's his boat:

http://www.britishpathe.com/video/fi...-under-the-sea

Hope I posted this in the right place....