Skip to content

Field guide · Fly fishing

Fly guide

Fly fishing is about casting the fly line itself, not the weight of the bait.

Updated

A class 4-6 single-handed rod covers most inland fishing for grayling and trout. Everything here is advisory: adapt it to the water, the hatch and the species, and check the rules locally.

Which fly rod and class should you choose?

A class 5 single-handed rod of 9 ft is the most versatile choice for grayling and trout in rivers.

The reel and line should have the same class as the rod. All of it is advisory.

Fly rod, line class, reel and leader for each kind of fishing, and how heavy a fish the setup handles
FishingSpeciesRodLineReelLeaderHandles fishTips
Grayling and small trout in clear waterGrayling and Arctic charSingle-handed rod class 3-4, 8.5-9 ftLine class 3-4 (WF floating)Fly reel class 3-4Leader 9 ft, 0.12-0.16 mm (5X-6X)Up to ~1.5 kgA light class gives a soft presentation. Small dry flies, emergers and nymphs for shy fish.
All-round grayling and trout (river)Grayling and brown troutSingle-handed rod class 5, 9 ftLine class 5 (WF floating)Fly reel class 5Leader 9 ft, 0.15-0.18 mm (4X-5X)Up to ~3 kgThe most versatile class. Handles dry fly, nymph and a little wind in a flowing river.
Bigger trout, streamers and windBrown troutSingle-handed rod class 6-7, 9 ftLine class 6-7 (floating/intermediate)Fly reel class 6-7 with a smooth dragShort, strong leader, 0.20-0.25 mm3-5 kgA heavier class casts big streamers and copes with wind on open water.

Dry fly, nymph or streamer?

The nymph is the default most of the time, the dry fly when fish are rising, and the streamer when you are after bigger trout.

Here are the five main types and when to use them.

Dry fly

Floats

Sits on top of the surface and imitates a hatched or fallen insect.

When: When the fish are rising to surface insects.

Emerger

In the surface film

Hangs half-submerged in the film, imitating an insect rising to hatch.

When: During a hatch, often better than a dry when fish pick gently.

Nymph

Sinks

Fished below the surface, imitating insect larvae and nymphs.

When: The default when nothing is rising, which is most of the time.

Wet fly

Sinks

Fished below the surface, often several on the leader, swung round in the current.

When: Classic and simple in rivers, effective when fish are chasing.

Streamer

Sinks

A big fly imitating baitfish, leeches or crayfish. Stripped in actively.

When: For bigger, hunting trout and to cover a lot of water.

Well-known patterns

Rakkelhanen and Klinkhammer are widely used dry flies, the Pheasant Tail and the goldhead nymph are widely used nymphs, and the Woolly Bugger is an all-round streamer.

Dry fly

Rakkelhanen

Grayling, trout

All-round surface fly, easy to see in current.

Klinkhammer

Grayling, trout

Body hangs in the film, takes fish keying on emergers.

Adams

Trout, grayling

A grey all-rounder when you are unsure of the hatch.

Emerger

Superpuppe

Grayling, trout

A Norwegian classic during caddis hatches.

CDC emerger

Grayling

Discreet in the surface film for shy fish in clear water.

Nymph

Pheasant Tail

Grayling, trout

A slim nymph imitating mayfly nymphs.

Hare’s Ear

Trout, grayling

A scruffy all-round nymph that takes most things.

Goldhead nymph

Trout, grayling

A brass head sinks fast in deeper pools and current.

Wet fly

Heggeli

Trout, grayling

A Norwegian wet-fly classic, swung in the current.

Red Tag

Grayling

A small wet with a red tag, an old grayling favourite.

Streamer

Woolly Bugger

Trout

An all-round streamer imitating leeches and prey.

Mickey Finn

Trout

A yellow/red baitfish imitation, stripped actively.

Pick colour and size to match the hatch on the water. These patterns are well-known favourites, not a fixed answer.

How do you cast and fish a fly?

The overhead cast is the basic cast, and a dead drift, where the fly drifts at the same speed as the water, is the key to a natural presentation.

Overhead cast

The basic cast. Accelerate and stop the rod crisply forward and back between 10 o’clock in front and 1 o’clock behind, and let the line roll out fully before laying it down.

Roll cast

For when you have no room behind you. Roll the line forward in a loop, useful in rivers with vegetation or a high bank.

Dead drift

Let the fly drift freely with the current at the same speed as the water, without the line dragging it unnaturally. The key to a natural presentation.

Mending

Throw a curve into the line up- or downstream after the fly lands, so the current does not pull the fly too fast.

Wet-fly swing

Cast across or slightly downstream and let the current swing the flies round. Follow with the rod and be ready for the take on the swing.

Kit list

Besides a rod, reel and line of the same class, you need a leader, tippet and 50 to 100 metres of backing.

Rod

  • Single-handed rod class 4-6Max ~3 kg
    9 ft, all-round for grayling and trout in rivers and lakes.
  • Light rod class 3Max ~1.5 kg
    8-8.5 ft, for shy grayling and small streams in clear water.
  • Rod class 6-73-5 kg
    9 ft, for streamers, wind and bigger trout.

Reel

  • Fly reel in the same class as the rod
    A large arbor recovers line fast. The drag is used on big fish.
  • Backing
    50-100 m of thin backing under the fly line gives margin on long runs.

Line & leader

  • WF floating lineClass 3-7
    Weight forward in the rod's class. Standard for dry fly and nymph.
  • Intermediate / sinking lineClass 5-7
    For streamers and fishing deeper in still water.
  • Fluorocarbon leader & tippet0.12-0.25 mm
    Tapered or an X system, thinner in clear water.

Accessories

  • Fly boxes
    Separate dry flies, nymphs and streamers.
  • Floatant & sink putty
    Floatant for the dry fly, putty to take the shine off the leader.
  • Waders & wading boots
    For river fishing and edges in mountain lakes.
  • Polarised sunglasses
    See fish and structure, and protect your eyes from the hook.
  • Unhooking pliers & nippers
    Gentle unhooking and quick tippet changes.
  • Fishing licence on your phone
    Buy it on inatur or iFiske before you start.

Which species can you catch on the fly?

Grayling and trout are the main species on the fly, while char take small nymphs and emergers on calm evenings in mountain lakes.

Grayling

The classic fly-fishing quarry. Loves small nymphs and dry flies in clear water. Needs a discreet presentation and a long, thin leader. Often rises to tiny insects.

Brown trout

Dry fly when it rises, nymph otherwise, streamer for the bigger ones. Fish along edges, inlets, rocks and current seams at first light and dusk.

Arctic char

Less common on the fly, but takes small nymphs and emergers at the surface on calm evenings in mountain lakes. Try it when it is dead calm and char are rising.

Common questions

Which line class suits a beginner?

Class 5 is the usual all-round choice for trout in Norwegian lakes and rivers. Class 3 to 4 is finer for small streams and grayling, and class 6 and up when you need to cast big flies or into wind. Rod, reel and line must share a class for the cast to load. Fly rod, class and technique

Dry fly or nymph?

A nymph most of the time, a dry fly when you can see fish feeding on the surface. Almost everything a trout eats it takes underwater, so a nymph fishes where the fish actually are. When you see rings during a hatch, the dry fly is both more fun and more effective.