Fly fishing with the submerged fly is the oldest and still very promising technique. This technique of fly fishing is very attractive even if, in our opinion, it is unjustly not very popular in certain areas. Submerged flies are placed just below the surface of the water and often imitate emerging nymphs, but also drowned or sunken flies and rarely even small fry. The materials for tying these artificial flies are very soft and the body shape is often aerodynamic. In this way underwater they are irresistible.