After my lazy guess, I did put in a bit more thought.
My tools are google maps in terrain or satellite mode - though the name of the location comes up in maps mode, and the LIST.
Once I twigged it was coastline with a nice field along the line of view rather than a dam wall
I started to look at the big picture of Tas for 2 large heavily wooded mountains very near the coast. Starting from the Tamar I rapidly moved down to Mt Elephant when all of a sudden it twigged that it was probably Maria Is.
Having confirmed the 2 large peaks on the island with the right line up - it had to be on a certain westward facing beach with the mountains behind. Afterwards I noticed a small swamp area just back from the beach which also seems to be captured in the photo.
I was a little frustrated to find that the satellite view was not high res in that area - so I could not visually confirm the existence of a weather station there.
Anyway - in keeping with the theme
- From coastal walk north of Trial Harbour looking south to Ocean Beach