Always the same....
We tried to save them one year, they refused food, rested, but really didn't recover well. Upon release one took off never to return, the other was harried by the local sea eagle, despite our best warding off attempts. Foolish of us to interfere.
I have left them alone from them on, despite how forlorn it seems.
Next season we had more luck helping a beautiful sea snake that had been washed down the coast by the strong NE storm swells that time. They are amazing - so colourful, so feared, yet harmless to humans and absolutely beautiful to see it the ocean.