We recently dove our local, early morning and came across this healthy school of jew. Usually the water is no better than 10 metres vis but today was an exception with 30 metres. We could actually see a big black ball moving up and down the sand line from the surface (jew school) but in 20 odd metres of water it was proving difficult to time our descent and get in front of the pack. I got lucky and made a drop, heard the croaks and turned to see them in the distance belting along. Managed to cut them off and take a decent shot