Storms have changed the shore line here and these Dolphin just came up with a new way to hunt. Instead of pushing the fish right on the beach they will herd them along side the shallows and chase right behind them.
The first step is to scare them into moving.
When you see the water move, like above, for no particular reason something is happening below the surface.
Next that disturbance, or wave quickly moves towards the shoreline. Click the image above to see the Dolphin starting to push towards the shallows.
Finally the Dolphin has a school in the shallows and can chase them either left or right, but always between them and the deep water.
Click, or double tap, any image to view the full size gallery.