Thank you - that would have been my guess from other entries, but it was too quick to get a good look at the head and I wasn’t sure if the colouring was too dark.
A hint for the future. It can be difficult to tell the two Crinia apart without a peek at the belly. Even if you are able to include it in your comments; marbled black and white or granular grey. If you know that here, we could be more definite with this frog. Find images of the bellies of both species and get it clear in your head how it looks.
Hi Don, happy to show you the location. Best way of contacting me is at michael.saxon@dcceew.nsw.gov.au and we can arrange a time. I am only 5 mins walk from it.