> I wonder if areas like these would cause fish to congregate Any fisherman, especially one who fishes rivers, has a wealth of intuitive understanding of what

> I wonder if areas like these would cause fish to congregate Any fisherman, especially one who fishes rivers, has a wealth of intuitive understanding of what kinds of water features lead to greater concentrations of fish and indeed a lot of it has to do with depth and turbulence. You'll often hear them talking about whether a patch of water looks "fishy" or not, and that often has to do with how still or turbulent the surface is (along with many other factors).