Australia's getting nuclear subs with the AUKUS deal, but where will they be based?

Port Kembla is believed to be Defence's preferred location for a nuclear submarine base, but it is not the only candidate. (Supplied)

Port Kembla is firming up as the mostly likely option as the home for Australia's first nuclear submarine base, but it is still far from a done deal.

As well as the port south of Wollongong, the Department of Defence is also considering Brisbane and Newcastle.