A huge rainbow trout even with hooked jaw ... caught on a dry fly !
To experience the benefit of a mayfly (E.Danica) hatch, it is not always mandatory to
fish on the most known chalk streams. Although only this last type of rivers can offer
the "spectacle" of thousends of insects hatching togheter, the ephemera danica is often
present, less massively, in many rivers in our continent.