Hi,
in Australia, clinical student placements (internships) are integrated into a 4 year degree.
So, there are no year long internships as such. Also, the clinical placements are unpaid, as they contribute to your learning.
I have, however, no idea, whether Australia would accept Physio Students for an internship as an exception. Best is to write to them directly and ask.
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Cannot give you great hopes though that you will be paid.
Good luck,
Fyzzio