Fly choice will depend on the time of year.
In the spring and autumn weighted tube flies may be required, but if the water is low, flies tied on larger doubles or trebles will be sufficient.
In summer bring doubles and trebles down to a size 12 or even smaller on some tributaries.
Flies such as the black shrimp and the nessc were devised on the River Ness, and often prove to be the anglers choice regardless of the season.
Loch Ness in Mist.
Autumn salmon flies