This style of flies is one of the most successful flies at rivermouths. They work best in still or slow moving water.

Normally fished on a fast-sinking line. Let them sink then retrieve with gaps between each pull. The fly will naturally float off the bottom then sink on the retrieve and then float up again during the pause - the movement is IRRESISTABLE to trout!!! 

They can also be fished on a floating line during the summer.

 Olive Booby:

Tying Pattern:

Thread - Olive

Eyes - Ethafoam / Nylon Mesh

Body - Olive chenille or dubbed fur etc

Tail - Olive Marabou

There are many variants that can be tried with this pattern - so worth trying different materials and colours.