Fly-fishing success begins with learning the seasonal requirements of fish in the waters you plan to visit. Once you are on the water, there are several ways to read it. First, learn to recognize the overall structure of the water. Structure Structure may be rocks, moss beds, fallen trees, or other such objects. It is around these structures that fish live.
Food is more plentiful here, and the structure provides protection from predators.
Eddies and Pools Eddies and pools created by structure provide relief from strong currents. Spawning often takes place in these fertile, protected areas. To find fish, learn to recognize these major structure areas. If fish are not clearly visible at the surface or in the shallow water, they most likely will be hidden in the deeper, darker water. Depth and bottom structure provide most of the needs of fish.