Gurgler fly.

Fished a very shallow reef type mark at low water.
I could see sprat jumping and small pollack breaking the surface.
Switched to a floating line and a gurgler fly (floating popper).
Twitching it back got some small hits from pollack, then a big boil behind the fly....left the fly for 3 seconds and twitched it again.
An explosion of water and fish!
Bass on!

Fly is green/white with a white foam top.
Photographed and released!