Here is a video from Kalbarri. My dad (wafarmer on this site) showed them around the area and they filmed different fishing locations.
This will go to TV around Australia and around the world depending on who buys the show.
The fish are Yellow Fin Tuna.
Here is a promo
Kalbarri location
Lat 27°42'21.30"S
Long 114° 9'38.51"E