In honor of Submarine Day let's look at the HMAS Onslow.
The submarine is now part of Australia's National Maritime Museum.
The sub has a lovely view of Sydney.
The Onslow was built in Scotland, commissioned in 1969, and saw service until 1999.
I was brave and went inside, walking mostly alone all along its almost 300 foot length.
In the next days I can show you the claustrophobic quarters.
You can read about some tragic and strange incidents in this submarine's history.