Ihe Water Walker stone (developed by Will Dornan) is one of the most versatile stonefly dry flies that we have fished. Aside from the knotting of some rubberlegs, it's a pretty basic fly that does one job really well - look like a stonefly when viewed from the bottom of the fly. The knotting of the legs and very slender profile is absolutely deadly for even the most picky trout! Tie some up in colors and sizes that match your local stoneflies! Scroll down to see this fly in action in a Salmonfly hatch on the Henry's Fork in Idaho.