This grotto is adjacent to Lovat Chapel Yass which I posted a pic of a few days ago...see https://365project.org/galactica/365/2022-01-26
I'm guessing it's a statue of Our Lady of Lourdes in the Grotto but can't say definitively.
I am a retired historian, archivist, curator and heraldry officer living in Australia. My love of history is centred around military, maritime, medicine and social...